Hardy weinberg

Question

3.1. A population of 500 humans is examined for the frequency of a recessive phenotype called RED nails. The population is in Hardy Weinberg equilibrium. Homozygotes for the dominant allele and heterozygotes have RED fingernails. Homozygotes for the recessive allele have WHITE fingernails. It is found that 400 of the individuals are RED nailed. Which of the following is incorrect?

a. The frequency of WHITE individuals in the population is 0.2

c. The frequency of WHITE individuals in the next generation will be 0.2.

d. The frequency of RED individuals in the next generation will be 0.8

d. The allele frequency of the recessive allele is 0.2

e. All of the above are correct

Answer 1

d is incorrect.

0.2 (or, 20%) of the population have a WHITE phenotype, WHITE being recessive to RED.

q^2 (q-squared) = 0.2

q = the square root of 0.2.