Question

A gene locus has two alleles A and a, if the frequency of dominant allele A is 0.6 then what will be the percentage of homozygous recessive individuals in the population

Answer 1

Answer:

Frequency of dominant allele (say p)=0.4

Frequency of recessive allele (say q) =1−0.4=0.6

∴ Frequency of homozygous dominant individuals (AA)

=p  

2

=(0.4)  

2

=0.16

Frequency of heterozygous individuals (Aa) =2pq=2(0.4)(0.6)=0.48

Frequency of homozygous recessive individuals(aa)

=q  

2

=(0.6)  

2

=0.36.

Explanation: