Natural Selection - Middle School Life Science
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If a species of bird adapts to have a broader and shorter wingspan, this would be an example of .
If a species of bird adapts to have a broader and shorter wingspan, this would be an example of .
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The answer is a "structural adaptation."
Adaptations are any change in the structure or behavior of a species which helps it to become better fitted to survive and reproduce in its environment. When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is a "structural adaptation."
Adaptations are any change in the structure or behavior of a species which helps it to become better fitted to survive and reproduce in its environment. When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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If a random mutation is favorable (meaning it helps the species survive) then what will happen to a population in which the mutation occurs?
If a random mutation is favorable (meaning it helps the species survive) then what will happen to a population in which the mutation occurs?
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The answer is "the specific trait will be expressed more frequently."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "the specific trait will be expressed more frequently."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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Which of the following is NOT an example of a structural adaptation?
Which of the following is NOT an example of a structural adaptation?
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The answer is "birds migrating in winter"
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "birds migrating in winter"
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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What could you expect about the expression of a specific trait if it is found to be harmful?
What could you expect about the expression of a specific trait if it is found to be harmful?
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The answer is "all of these."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "all of these."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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Which of the following explains why natural selection acts on an organism's phenotype and not its genotype?
Which of the following explains why natural selection acts on an organism's phenotype and not its genotype?
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The answer is "Phenotypes influence the way organisms survive in their environments."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "Phenotypes influence the way organisms survive in their environments."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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How does the process of natural selection influence the expression of specific traits?
How does the process of natural selection influence the expression of specific traits?
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The answer is "specific traits that are favorable are expressed more frequently in populations."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "specific traits that are favorable are expressed more frequently in populations."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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After many thousands of years of tectonic activity, an island splits apart and separates into two smaller islands. In the process, two populations of the same lizard species become separated and eventually, they cannot interbreed. One population even developed a slightly darker coloration. What was the result of natural selection during this extended period of time?
After many thousands of years of tectonic activity, an island splits apart and separates into two smaller islands. In the process, two populations of the same lizard species become separated and eventually, they cannot interbreed. One population even developed a slightly darker coloration. What was the result of natural selection during this extended period of time?
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The answer is "speciation."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "speciation."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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Which example from the fossil record best represents that natural selection has been occurring over millions of years?
Which example from the fossil record best represents that natural selection has been occurring over millions of years?
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The answer is "It is possible to find fossils of animals that no longer exist because they are ancestors of current species."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "It is possible to find fossils of animals that no longer exist because they are ancestors of current species."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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A random mutation occurs in a tree frog population. The tree frog has a new set of alleles that cause it to develop more lightly colored camouflage than its counterparts. Which of the following will determine whether this lightly colored camouflage will be expressed more frequently in the population?
A random mutation occurs in a tree frog population. The tree frog has a new set of alleles that cause it to develop more lightly colored camouflage than its counterparts. Which of the following will determine whether this lightly colored camouflage will be expressed more frequently in the population?
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The answer is, "all of these."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is, "all of these."
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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Which of the following best illustrates natural selection?
Which of the following best illustrates natural selection?
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The answer is "An organism with favorable genetic variation will survive and breed." Even though "The breeding opportunities in a population always go to the largest and strongest individuals." sounds like it could be true - the strongest and largest physical traits are not always the most advantageous for survival. Consider that some species require camouflage or being small for hiding from predators.
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
The answer is "An organism with favorable genetic variation will survive and breed." Even though "The breeding opportunities in a population always go to the largest and strongest individuals." sounds like it could be true - the strongest and largest physical traits are not always the most advantageous for survival. Consider that some species require camouflage or being small for hiding from predators.
When a random mutation occurs, it can lead to an increase in the expression of specific traits. When traits are inheritable and beneficial, they become more common because those individuals thrive. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits throughout the population. On a broader scale over a longer period of time, this is how natural selection leads to speciation and eventually evolution.
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
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Which of the following statements about mutations is FALSE?
Which of the following statements about mutations is FALSE?
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A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
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Which of the following is NOT a kind of mutation?
Which of the following is NOT a kind of mutation?
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The answer is "transformation."
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
The answer is "transformation."
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
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Why do mutations occur?
Why do mutations occur?
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The answer is "all of these." Mutations can happen spontaneously during replication, or by contact with chemicals in the environment called mutagens.
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
The answer is "all of these." Mutations can happen spontaneously during replication, or by contact with chemicals in the environment called mutagens.
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
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Where in this diagram does a point mutation occur?
Where in this diagram does a point mutation occur?
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The answer is "at one or a few nucelotides in a gene sequence" because point mutations are small changes in a few nucleotides that can shift the effects of an entire gene sequence.
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
The answer is "at one or a few nucelotides in a gene sequence" because point mutations are small changes in a few nucleotides that can shift the effects of an entire gene sequence.
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
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What would happen if the section of DNA pictured was accidentally deleted during the process of replication?
What would happen if the section of DNA pictured was accidentally deleted during the process of replication?
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A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
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Which of these would most likely cause a mutation?
Which of these would most likely cause a mutation?
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The answer is "the insertion of a nucleotide into DNA."
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
The answer is "the insertion of a nucleotide into DNA."
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
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A disease in humans is caused by a change in one codon in a gene from GAA to GUA. This disease is caused by:
A disease in humans is caused by a change in one codon in a gene from GAA to GUA. This disease is caused by:
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The answer is "a mutation."
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
The answer is "a mutation."
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
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Mutations in DNA are:
Mutations in DNA are:
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A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
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A mutation in which of these types of cells could be passed to an organism's offspring?
A mutation in which of these types of cells could be passed to an organism's offspring?
Tap to reveal answer
The answer is "an egg cell"
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
The answer is "an egg cell"
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
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During DNA replication, the wrong nucleotide was inserted into the DNA sequence. Which of the following best describes this situation?
During DNA replication, the wrong nucleotide was inserted into the DNA sequence. Which of the following best describes this situation?
Tap to reveal answer
The answer is "a mutation."
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
The answer is "a mutation."
A mutation is a genetic variation that happens by chance. A mutation is not necessarily good or bad. Some mutations are harmful, and end up causing the organism to die sooner than its counterparts. Some mutations have no effect on an organism at all. Other mutations that are inheritable and beneficial, have the potential to become standard in a population. Through the process of natural selection, more individuals with beneficial mutations will survive than those without it, and it will lead to an increase in the expression of those certain traits. This is ultimately how evolution occurs.
Some types of mutations:
Deletion: When a segment of DNA is lost, so there is a missing segment in the chromosome. These usually result in many genes missing from the chromosome.
Duplication: When a segment of DNA is repeated, creating a longer chromosome. These usually result in multiple copies of genes in the chromosome.
Inversion: When a segment of DNA is flipped and then reattached to the same chromosome.
Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome.
Translocation: When two segments from different chromosomes change positions.
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