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

question 46

Multiple Choice

Red-green color blindness is an X-linked recessive trait in humans. Two people with normal color vision have a son with colorblindness. Given this information, the genotypes of the parents are ________.

• A) XnXn and XnY
• B) XNXN and XnY
• C) XNXN and XNY
• D) XNXn and XNY

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