Use the Following Information to Answer the Questions Below

Use the following information to answer the questions below.
A large population of laboratory animals has been allowed to breed randomly for a number of generations. After several generations, 25% of the animals display a recessive trait (aa) , the same percentage as at the beginning of the breeding program. The rest of the animals show the dominant phenotype, with heterozygotes indistinguishable from the homozygous dominants.
-What proportion of the population is probably heterozygous (Aa) for this trait?

A) 0.05
B) 0.25
C) 0.50
D) 0.75
E) 1.00

Correct Answer:

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