Multiple Choice
Red-green colour blindness is a sex-linked recessive trait in humans. Two people with normal colour vision have a colour-blind son. What are the genotypes of the parents?
A) XnXn and XnY
B) XNXN and XnY
C) XNXN and XNY
D) XNXn and XNY
Correct Answer:
Verified
Correct Answer:
Verified
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