Ncert Exercises & Solutions

Q.28 In a certain population , the frequency of three genotypes as follows

Genotypes BB Bb bb

Frequency 22% 62% 16%

What is the likely frequency of B and b alleles?

The likely frequency of B

$= B B + \frac{1}{2} B b$
$= [22 + \frac{62}{2}] %$
$= 53 %$

The likely frequency of b

$= b b + \frac{1}{2} B b$
$= [16 + \frac{62}{2}] %$
$= 47 %$