Red-Green Color Blindness Is an X-Linked Recessive Trait in Humans

question 90

Multiple Choice

Red-green color blindness is an X-linked recessive trait in humans. A color-blind woman and a man with normal vision have a son. What is the probability that the son is color-blind?

• A) 100 percent
• B) 75 percent
• C) 50 percent
• D) 25 percent
• E) 0 percent

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