Red-Green Color Blindness Is a Sex-Linked Recessive Trait in Humans

question 60

Multiple Choice

Red-green color blindness is a sex-linked recessive trait in humans. Two people with normal color vision have a color-blind son. What are the genotypes of the parents?

• A) X^cXc and X^cY
• B) X^cXc and X^CY
• C) X^CXC and X^cY
• D) X^CXC and X^CY
• E) X^CXc and X^CY

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