MarksRiser
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AIPMT PRELIMS2010Botany-Genetics

AIPMT PRELIMS 2010 Botany Blood Groups MCQ Question

Type: MCQ-conceptual-Medium-Class 12

ABO blood groups in humans are controlled by the gene I. It has three alleles–Iᴬ, Iᴮ and i. Since there are three different alleles, six different genotypes are possible. How many phenotypes can occur?

A

Two

B

Three

C

One

D

Four

Correct Answer

Option D

Detailed Explanation

ABO blood group system is an example of multiple alleles but we will inherit only two alleles of a genes. So, the total number of phenotypes will be four.

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