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30 August, 15:09

In a population that is in Hardy-Weinberg equilibrium for two alleles, D and d. D shows complete dominance over d (i. e. heterozygotes Dd have the same phenotype as homozygotes DD). 72% of the population shows the dominant trait. What proportion shows the recessive trait?

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  1. 30 August, 15:54
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    0.28

    Step-by-step explanation:

    Hardy-Weinberg equilibrium states that the frequency of allele and genotype will remain the same from generation to generation in the the absence of evolutionary influences. Such evolutionary disturbance include: mutation, non-random mating, gene flow, natural selection, genetic drift and others,

    His equilibrium is denoted by the equation;

    p² + 2pq + q² = 1

    p² + 2pq represent the dominant phenotype which comprises of f (DD) = p² and f (Dd) = 2pq and is equal to 0.72

    then the f (dd) = q² = 1 - 0.72 = 0.28
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