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Which of the following genotypes for human blood type shows alleles that are codominant?

A. AO (or IAi)

B. AB (or I4IB)

C. BB (or IBIB)

D. AA (or IAIA)

Respuesta :

Answer:

B

Explanation:

The IA and IB alleles are codominant, and the i allele is recessive.

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