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8 February, 23:10

If a population has only two alleles for a gene (B, b) with equal frequencies and it is in Hardy-Weinberg equilibrium, what are the expected frequencies of genotypes BB, Bb, and bb?

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  1. 8 February, 23:13
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    According to the Hardy-Weinberg equilibrium equation, heterozygotes are represented by the 2nd term. Therefore, the number of heterozygous individuals (Aa) is equal to 2 pq, which is equivalent to 2 * 0.19 * 0.81 = 0.31 or 31%

    Explanation:

    Homozygous recessive individuals (aa) are represented by the term q 2 in the equilibrium HWecuation which is equivalent to 0.81 * 0.81 = 0.66 or 66%
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