Relative to females, males are much more likely to suffer from classic hemophilia because
A) only males can inherit the dominant gene responsible for the blood-clotting disease on
the larger of their two sex chromosomes.
B) when males inherit the recessive hemophilia gene on their Y chromosomes, their X
chromosomes do not have a corresponding dominant gene to mask the disease.
C) when males inherit the recessive hemophilia gene on their X chromosomes, their Y
chromosomes do not have a corresponding dominant gene to mask the disease.
D) when males inherit the dominant hemophilia gene on their Y chromosomes, it is highly
likely that they will also carry the gene on their X chromosome.
C
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