Question

In a population of gerbils, long hair (H) is completely dominant over short hair (h). If 18% of the population has short hair, calculate the percentage of the population that is expected to be heterozygous (Hh). ...?

Answer 1

49 percent

Step-by-step explanation:

I got this question correct on the quiz.

Answer 2

Below are the choices that can be found elsewhere:

A) 29%
B) 58%
C) 80%
D) 49%

q^2 + 2pq + p^2=1


And q + p = 1

You have q^2 which is 0.18, which stands for the homozygous recessive. p^2 is homozygous dominant percentage while 2pq is what you're looking for, heterozygous.

Anyway to find your answer, square root q^2 to find q, then you can use q+p=1 to find p. Then use 2pq to find the percent of heterozygotes. The answer for your question is D.