Males More Commonly Are Affected by X-Linked Recessive Genetic Disorders

question 3

Multiple Choice

Males more commonly are affected by X-linked recessive genetic disorders than are females because

• A) females have two X chromosomes and thus less of a chance to be recessive.
• B) males have only one X and thus more of a chance to be recessive.
• C) males have only one X, they have multiple alleles for each gene.
• D) Y chromosomes cause X gene mutations.
• E) males are weaker genetically than females.

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