In humans polydactyly (i.e., presence of extra fingers and toes) is determined by a dominant autosomal allele (P) and the normal condition is determined by a recessive allele (p). Find out the possible genotypes of family members 1,2 and 3 in the given pedigree

Options

A. `{:(" 1 2 3"),("PP Pp pp"):}`
B. `{:(" 1 2 3"),("PP PP pp"):}`
C. `{:(" 1 2 3"),("Pp PP Pp"):}`
D. `{:(" 1 2 3"),("Pp Pp pp"):}`

Answer

D

Explanation

Given pedigree chart for polydactyly (autosomal dominant trait) can be explained as follows :