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In humans, ABO blood types refer to glycoproteins in the membranes of red blood cells. There are three alleles for this autosomal gene: IA, IB, and i. The IA allele codes for the A glycoprotein, The IB allele codes for the B glycoprotein, and the i allele doesn't code for any membrane glycoprotein. IA and IB are codominant, and i is recessive to both IA and IB. People with type A blood have the genotypes IAIA or IAi, people with type B blood are IBIB or IBi, people with type AB blood are IAIB, and people with type O blood are ii. If a woman with type AB blood marries a man with type O blood, which of the following blood types could their children possibly have?

A. A and B
B. AB and O
C. A, B, and O
D. A, B, AB, and O

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Answer: A. A and B.

Explanation: The woman's genotype is IAIB and the man's genotype is ii. Their children inherite the IA allele or IB allele (Dominants) from their mother and only the i allele (recessive) from their father, so these children will have blood type A (genotype IAi) or B type (Genotype IBi).

Answer:

,

Explanation:

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