With Respect to ABO Blood Groups, How Many Genotypes and Phenotypes, Respectively, are Possible in the Population of Human Beings?

1) 6 and 4

2) 4 and 6

3) 4 and 4

4) 6 and 6

Answer:2) 4 and 6

Explanation: The ABO blood group is determined by three alleles of the gene ‘I’ that is responsible for producing surface antigen on RBCs. The three alleles are IA, IB, and i. These three alleles combine to form 6 types of genotypes. Since IA and IB are codominant over i, there are 4 types of phenotypes possible, i.e. A, B, AB and O. Check the table below for the different genotypes and corresponding phenotypes or blood types with respect to ABO blood groups.

Genotype

Phenotype (Blood Type)

IAIA, IAi

A

IBIB, IBi

B

IAIB

AB

ii

O

Also Check:

Stay tuned to BYJU’S to learn similar NEET Questions.

Was this answer helpful?

 
   

0 (0)

(0)
(0)

Choose An Option That Best Describes Your Problem

Thank you. Your Feedback will Help us Serve you better.

Leave a Comment

Your Mobile number and Email id will not be published. Required fields are marked *

*

*

Ask
Question