X-linked recessive disorders affect more females than males.

Name: X-linked recessive disorders affect more females than males.
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Question

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Because males only have one X chromosome, the effect of any recessive alleles on the X chromosome will be seen in male phenotype more than in female phenotype. Since females have two X chromsomes, in females in the presence of the dominant allele, the effect of the recessive allele will not be seen.

X-Linked Recessive Disorders Affect More Females Than Males