Solution: What would be Mom's genotype and phenotype forcolor blindedness, an X-linked recessive trait?A. Mom would have the genotype XBXB and would be color-blind.B. Mom would have the genotype XBXB and would not be color-blind.C. Mom would have the genotype XBXb and would not be color-blind.D. Mom would have the genotype XBXb and would be color-blind.

Problem

What would be Mom's genotype and phenotype forcolor blindedness, an X-linked recessive trait?

A. Mom would have the genotype XBXB and would be color-blind.

B. Mom would have the genotype XBXB and would not be color-blind.

C. Mom would have the genotype XBXb and would not be color-blind.

D. Mom would have the genotype XBXb and would be color-blind.

Solution

Remember that a male individual ha XY as his sex chromosomes. Therefore, males only need one copy of the recessive allele to be afflicted of the disorder.

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