Question

Colorblindness is a sex-linked recessive trait. If B=normal and b=colorblind, what would be the genotype of a normal male? Question 1 options: XbY XBYb XBXb XBY

Answer 1

XBY

Step-by-step explanation:

Males have X and Y chromosomes, so we ca eliminate the third option.

Because he is normal and not a carrier, we can eliminate the second option.

Because he is also not colorblind, we can eliminate the first option.

That leaves us with XBY

Hope this helps