The genotypes of a Husband and Wife are I^AI^B and I^Ai. Among the blood types of their children, how many different genotypes and phenotypes are possible ?

NEET UG 2017 · Botany · Question 134

NEET 2017 Botany, question 134

Question 134 of the NEET 2017 paper (code A) is a Botany question from Principles of Inheritance and Variation. Its idea, ABO Blood Group Inheritance, was asked 3 times, in 2017, 2018 and 2026, across NEET 2017–2026. The CBSE official answer key gives option 3.

Updated 2026-10-08

Q134 · Botany

I^AI^B

1 3 genotypes ; 3 phenotypes 2 3 genotypes ; 4 phenotypes 3 4 genotypes ; 3 phenotypes Official answer 4 4 genotypes ; 4 phenotypes

Official answer: option 3 · CBSE official answer key

Same idea

ABO Blood Group Inheritance, in other papers

NEET asked this idea 3 times, in 2017, 2018 and 2026. The other 2 questions below.

2026 Q 169 For a person with blood group 'O', which of the following is not a possible combination of parents' blood group genotypes ? One-line MCQ \cdot Medium 2018 Q 180 Which of the following characteristics represent 'Inheritance of blood groups' in humans ? a. Dominance b. Co-dominance c. Multiple allele\dots Other \cdot Easy

ABO Blood Group Inheritance: every question and how it was framed

The chapter

Principles of Inheritance and Variation in ten years of NEET

43 questions from 2017–2026, asked in 10 of 10 papers, about 4.1 a paper. Mendelian Inheritance alone had 20.

Chapter analysis Study this chapter Practise this chapter

ABO Blood Group Inheritance, in other papers

Principles of Inheritance and Variation in ten years of NEET

Principles of Inheritance and Variation: questions per paper