Question

4. If 81% of a population is homozygous recessive for a given trait....... What is the predicted frequency of homozygous dominant? What is the predicted frequency of heterozygotes? What is the frequency of the dominant and recessive alleles in the population?

Answer 1

hardy Weinberg This given problem can be solved by using equation. p²+2 pq+q ²2 Ptq=1 po Frequency of the dominant allele present in the population q = Frequency of the necessive allele in the population p2 percentage of homozygous dominant individual 2 2 = percentage of homo aggous recessive individuals 2pq = percentage of the heterody gous individual. From the givers data, q2 = 81% q=0.81 q2.9 and peol (P+q = 1) q2.9 9 Frequency of homozygous dominant, p261) 2 - 01 q Frequency of heterozygotes , 2P9 = 2 (9)603.18 2. So the dominant and recessive allele frequency. recessive (+9)= 90% Dominant (:1) = 10%

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