Study the given pedigree chart showing the inheritance if an X-linked trait controlled by gene 'r'

What will be the genotypes of individuals A,B,C and D respectively ?

Options

A. `XX,X^(r)Y,X^(r)X,XY`
B. `X^(r)X^(r),XY,XX,XY`
C. `X^(r)X,X^(r)Y^(r),X^(r)X^(r),X^(r)Y`
D. `XX,X^(r)Y^(r),XX,XY`

Answer

A

Explanation

Genotypes of different individuals in the given pedigree chart can bne illustrated as :