Assume that blood type is inherited as A and B dominant over O, but A and B are codominant over each other. Genotypes (IA IA) and (IA i) are then phenotypically type A, genotypes (IB IB) and (IB i) are type B, genotype (IA IB) is type AB, and genotype (i i) is type O blood. A man with blood type IA IA marries a woman with type AB blood. What are the genotypic and phenotypic ratios of the children?

Concepts of Biology
1st Edition
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:Samantha Fowler, Rebecca Roush, James Wise
Chapter8: Patterns Of Inheritance
Section: Chapter Questions
Problem 18CTQ: Could an individual with blood type O (genotype ii) be a legitimate child of parents in which one...
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Assume that blood type is inherited as A and B dominant over O, but A and B are codominant
over each other. Genotypes (IA IA) and (IA i) are then phenotypically type A, genotypes (IB IB) and
(IB i) are type B, genotype (IA IB) is type AB, and genotype (i i) is type O blood. A man with blood
type IA IA marries a woman with type AB blood. What are the genotypic and phenotypic ratios of
the children?

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