Use the following information to answer the questions below.

Biology

1 answer:

ivanzaharov [21]3 years ago

3 0

Answer: c - The proportion of the population that is heterozygous (Aa) for this trait is 0.50

Explanation: Percentage of those with homozygous recessive alleles (aa) in the population has been given as 25%. We can represent this as q².

Recall that Hardy-Weinberg provides the equation p² + 2pq + q² = 1, where

P² = homozygous dominant alleles

q² = homozygous recessive alleles

2pq = heterozygous alleles

q² = 25% = 25/100 = 0.25

q = √0.25 = 0.5

Also recall that for two alleles, p and q, p + q = 1.

Therefore, p = 1 - q = 1 - 0.5 0.5

Since we now have the values of p and q, we can calculate the proportion of heterozygous alleles (Aa) as 2pq = 2 x 0.5 x 0.5 = 0.5

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