The types of blood group and their fractions seen in offsprings of a man with AB blood group and a woman with blood group O. Concept introduction: The ABO blood grouping system exemplifies multiple allelism and co-dominance. The alleles that determine the blood group are I A , I B and i . This shows multiple allelism as three alleles determine a character. Moreover, the alleles I A and I B are equally dominant on each other, thus, they are co-dominant.

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Chapter 11.3, Problem 2CC

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To determine:

The types of blood group and their fractions seen in offsprings of a man with AB blood group and a woman with blood group O.

Concept introduction:

The ABO blood grouping system exemplifies multiple allelism and co-dominance. The alleles that determine the blood group are IA, IB and i. This shows multiple allelism as three alleles determine a character. Moreover, the alleles IA and IB are equally dominant on each other, thus, they are co-dominant.

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