A survey reveals that 25 percent of a population of 1,000 individuals have attached earlobes (are homozygous recessive for the trait). What is the frequency of the recessive allele? a) √0.75 b) 0.75 c) √0.50 d) √0.25 e) 0.25
A survey reveals that 25 percent of a population of 1,000 individuals have attached earlobes (are homozygous recessive for the trait). What is the frequency of the recessive allele?
a) √0.75
b) 0.75
c) √0.50
d) √0.25
e) 0.25
Answer
Answer: d) √0.25
Explanation: Let q2=0.25 (homozygous recessive frequency). Thus, q=0.25=0.5. The frequency of the recessive allele is 0.5.