Red-Green Color Blindness Is a Recessive X-Linked Trait

question 50

Multiple Choice

Red-green color blindness is a recessive X-linked trait. If a female is red-green color-blind, which of the following is true?

• A) Her mother must be color-blind.
• B) Both her parents must be color-blind.
• C) Both her parents are carriers of the recessive allele.
• D) Her father must be color-blind.
• E) Women cannot exhibit red-green color blindness because they have two X chromosomes.

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