Question

A gene locus has alleles A,a the
frequency of dominant allele A is 0.4
then what will be the frequency
of homozygous dominant herozygous a
and homozygous recessive individuals
in the population
obtions
0.16AA ,0.48Aa,0.36aa
0.16AA,0.36Aa,0.48aa
0.36AA,0.48Aa,0.16aa
0.16AA,0.24Aa,0.36aa​

Answer 1

$\huge{ Answer -}$

● Frequency of homozygous dominant is A^2 = (0.4)^2 = 0.16

● We know that,

A + a = 1

0.4 + a = 1

a = 1 - 0.4

a = 0.6

●So, frequency of homozygous recessive allele = (0.6)^2 = 0.36

●Frequency of heterozygous allele = 2Aa

=> 2 × 0.4 × 0.6

=> 0.48