Question

The genotypes of a husband and wife are I^AI^B and I^Ai respectively. How many different genotypes and phenotypes are possible among the blood types of their children?

पर्याय

• 3 genotypes; 3 phenotypes

• 4 genotypes; 4 phenotypes

• 4 genotypes; 3 phenotypes

• 3 genotypes; 4 phenotypes

Answer 1

4 genotypes; 3 phenotypes

Explanation:

Gametes:	Husband	Wife
	IAIB   ×	IAi

Offsprings-

	IA	i
IA	IA IA 'A' blood group	IA i 'A' blood group
IB	IA IB 'AB' blood group	IB i 'B' blood group

Thus, number of genotypes : 4

number of phenotypes : 3