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gladu [14]
3 years ago
15

In a population of 10,000 individuals, 400 express a recessive trait. How many heterozygotes are there expected to be?

Biology
1 answer:
Nastasia [14]3 years ago
8 0
We will use the Hardy-Weinberg equation ; p2 + 2pq + q2 = 1
q2 represent the frequency of the recessive trait in the population which is 400/10000 = 0.04. Then find frequency of the recessive allele.
q = 0.2. While we understand that p+q =1 ; p = 1-q ; p = 1-0.2 =0.8.
2pq represents the frequency of heterozygous trait in the population. Therefore 2*0.8*0.2 =0.32
0.32*10000 = 3200
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