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Information about the Hardy Weinberg equation: http://www.nature.com/scitable/definition/hardy-weinberg-equation-299
The Hardy Weinberg equation is a very important concept in population genetics. Suppose we have two "alleles" for a specific trait (like eye color, gender, etc..) The proportion for which allele is present is given by 
Then by Hardy-Weinberg:
Which statement discribes the graph that would appropriately represents the above relation?
Straight line passing through the point
Curved line passing through the point
Parabola opening up passing through the point
Straight line passing through the point
Explanation
The equation can be reduced by taking the square root of both sides.
As a simple test, all other values when substituted into the original equation fail. However, 
