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NEET Biology Evolution Of Life Question Bank Self Evaluation Test - Evolution

  • question_answer
    A population of organisms has a gene for which there are two alleles, D and d. The allele frequency of D = 0.8. If this population satisfies all five of the Hardy-Weinberg conditions, what are the genotype frequencies that are expected in the next generation?

    A) DD = 0.04; Dd = 0.32; dd = 0.64

    B) DD = 0.64; Dd = 0.32; dd = 0.64

    C) DD = 0.04; Dd= 0.64; dd= 0.32

    D) DD = 0.64; Dd = 0.32; dd = 0.04

    Correct Answer: D

    Solution :

    [d] We are told that the allele frequency for D = 0.8; therefore, the frequency of d= 0.2. These values are the p and q that we need to calculate the genotype frequencies in the next generation. Using the Hardy- Weinberg equation, \[{{P}^{2}}\] (DD) = 0.64, 2pq (Dd) = 0.32, and \[{{q}^{2}}\] (dd) = 0.04.


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