In a large population of randomly reproducing rabbits,a recessive allele r comprises 80% of the alleles for a gene.What percentage of the rabbits would you expect to have the recessive phenotype?
A)4%
B)32%
C)64%
D)80%
E)100%

Question

Quizplus · Accepted Answer

According to the Hardy-Weinberg principle, the frequency of homozygous recessive individuals (rr) can be calculated using the equation p^2 + 2pq + q^2 = 1, where p is the frequency of the dominant allele and q is the frequency of the recessive allele. If the recessive allele comprises 80% of the alleles, then q = 0.8 and p = 0.2. Therefore, the frequency of homozygous recessive individuals is q^2 = 0.64 or 64%.

In a Large Population of Randomly Reproducing Rabbits,a Recessive Allele