In humans, three alleles affect blood type. The A and B alleles are codominant, and the O allele is recessive. An AB blood type father has children with an A blood type mother (genotype AO). What are the chances that their children will have AB type blood? Choose 1 Choose 1 (Choice A) A 25\%25%25, percent (Choice B) B 50\%50%50, percent (Choice C) C 75\%75%75, percent (Choice D) D 100\%100%100, percent

The correct answer is - A. 25%.

Explanation:

In humans, the blood group system is known as the ABO system where blood groups A and B are codominant and O blood group is recessive. The genotype of the A blood group could be AA or AO similarly for the B blood group genotype would be BB or BO, for the O blood group OO whereas for the AB blood group both A and B alleles should be present together.

Cross: AB blood type father with an A blood type mother (genotype AO)

Gametes: A, B and A, O

Punnett square:

       A       B

A    AA     AB

O    AO    BO

Here, there are 25% chances of AB blood group offspring 50% for the A blood group (AA and AO) and 25% B blood group (BO).

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it would be heredity