Question

In a certain population of rabbits, the allele for brown fur is dominant over the

allele for white fur. If 20 out of 100 rabbits have white fur, what is the allele
frequency for the dominant allele?
The Hardy-Weinberg equation is:
(homozygous dominant]* + 2[heterozygous] + [homozygous recessive]? = 1
• A. 0.80
•
B. 0.20
• C. 0.55
D. 0.04

Answer 1

B: 0.20

Step-by-step explanation:

The Hardy-Weinberg equilibrium equation describes the equilibrium frequency of alleles in a population. The frequency of an allele is the proportion of individuals in a population that have that allele.

To find the frequency of the dominant allele, we need to know the proportion of individuals in the population that are homozygous dominant or heterozygous for the dominant allele. From the information given, we know that 20 out of 100 rabbits have white fur, which means that 20/100 = 0.20 of the population is either homozygous dominant or heterozygous for the dominant allele.

Therefore, the frequency of the dominant allele is 0.20, which corresponds to answer choice B.