Why Are X-Linked Traits More Commonly Expressed in Males Than

question 149

Multiple Choice

Why are X-linked traits more commonly expressed in males than in females? Select the TWO answers that are correct.

• A) Males have only one X chromosome,whereas females have two.
• B) Males have an X and a Y chromosome,and females have two Y chromosomes.
• C) Females have two X chromosomes,so one can mask the effects of the other.
• D) Males have two X chromosomes,making them twice as likely to have the phenotype.
• E) Females have only one X chromosome,whereas males have two.

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