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Chapter 4: Problem 10

A woman with type B blood has a child with type \(\mathrm{O}\) blood. What are the possible genotypes and blood types of the father?

Short Answer

Expert verified
The possible genotypes of the father could be AO, BO or OO, resulting in blood types of A, B, or O.

Step by step solution

01

Determine the mother's genotype

From knowledge of blood types, the mother, whose blood type is B, could have the genotype BB or BO. But since the child has type O (OO), the mother must have been BO to give the O allele.
02

Possible blood types for the father

A child with blood type O, indicates they inherited an O allele from both parents. Therefore, the father's genotype must contain an O allele. So, he could be BO (which corresponds to blood type B), AO (blood type A), or OO (blood type O). He cannot be AA, BB, or AB since then he could not pass an O allele to the child.
03

Possible genotypes and blood types of the father

Therefore, the possible genotypes of the father could be AO, BO or OO. This means the father's blood type could be A (for genotype AO), B (for genotype BO) or O (for genotype OO).

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Most popular questions from this chapter

Discuss the differences among sex-influenced, sex-limited, and sex-linked inheritance. Give examples.

A type A woman is the daughter of a type \(\mathrm{O}\) father and a type \(\mathrm{A}\) mother. If she has children with a type \(\mathrm{AB}\) man, what are the following probabilities? A. A type \(\mathrm{AB}\) child B. A type \(O\) child C. The first three children with type \(A B\) D. A family composed of two children with type B blood and one child with type \(\mathrm{AB}\)

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