Sex Limited Trait



(ii).      Beard growth in humans is limited to men. A woman does not grow a beard hersell But she can pass the genes of heavy beard growth to her sons.

Sex Limited Ttraits



Sex hormones and other ph siologic differences between males and females effect on expression of certain gene. For example, premature baldness is an autosomal dominant trait. But this condition is rarely expressed in the female due to female sex hormones. It appears in them only after menopause. Thus. sex limited inheritance, perhaps more correctly called sex-influenced inheritance.

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