ABO blood groups in humans are controlled by the gene I. It has three alleles − I A , I B and i. Since there are three different alleles, six different genotypes are possible. How many phenotypes can

Question

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

TestHub · Accepted Answer

The three alleles in ABO blood groups in humans can produce six different genotypes and four different phenotypes.

Genotypes : Phenotypes
I_AI_A, I_Ai - Blood group A
I_BI_B, I_Bi - Blood group B
I_AI_B - Blood group AB
ii - Blood group O

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