Question

# Match the following related to phenotypes and genotypes of blood groups  Column−I Column−II1.AP.(ii)2.BQ.IA IA , IA i3.ABR.IB IB , IB i4.OS.IA IB

A

1 - P; 2 - Q; 3 - R; 4 - S

B

1 - Q; 2 - R; 3 - S; 4 - P

C

1 - S; 2 - R; 3 - Q; 4 - P

D

1 - P; 2 - R; 3 - P; 4 - S

Solution

## The correct option is B 1 - Q; 2 - R; 3 - S; 4 - P The ABO blood groups in a population is formed by two co-dominant alleles (IA) and (IB), and one recessive allele (i), also represented as (IO). Thus blood group A has two genotypes (IAIA and IAi) , Blood group-B has two genotypes (IBIB and IBi) , Blood group AB has one genotype (IAIB) and Blood group O has the recessive genotype (ii).

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