Chegg Textbook Solutions for Biology 10th Edition: Chapter 16

Chapter: Problem:

If p2 = 0.36, what percentage of the population has the recessive phenotype, assuming a Hardy-Weinberg equilibrium?

  • Step 1 of 2

    The binomial expression is used to calculate the genotype frequencies of the population. It is expressed using a formula.

  • Step 2 of 2

    Genotype frequencies:

    Here, p2 = Frequency of homozygous dominant

    q2 = Frequency of homozygous recessive

    Now let us consider

    …… (A)

    Hence, Substitute the given values of p2 in above equation (A)

    …… (B)

    So, above equation can also be written as

    Hence, 16 percent of the population is homozygous recessive, but frequency of recessive allele is 4 percent of population.

Get Study Help from Chegg
