Rare X-Linked Recessive Traits Appear More Often in Males Than

Essay

Rare X-linked recessive traits appear more often in males than in females and are not passed from father to son. Affected sons are usually born to unaffected mothers who are carriers of the gene for the trait; thus X-linked recessive traits tend to skip generations.
-How can you distinguish between an autosomal recessive trait with higher penetrance in males and an X-linked recessive trait?