150k views
4 votes
Colorblindness is a recessive trait found on the x chromosome. Explain why all men who have an x chromosome with the recessive allele will have colorblindness while a woman can be a carrier of the trait and not express it.

User Dothem
by
8.3k points

1 Answer

1 vote

Answer:

Yes, men will express it and women won't.

Step-by-step explanation:

Men have the x-chromosome and the y-chromosome. In my own understanding, the y-chromosome is more of dormant chromosome. Due to this, every trait of recessiveness expressed on the x-chromosome is dominant in the males because the y-chromosomes do not play any part in the manifestation of sex linked traits, but in females, since they have two x-chromosomes, the body reads the trait as a recessive and not a dominant trait. In simple terms, the x-chromosomes carry the sex-linked traits, so men may have the recessive trait on their only x-chromosome which makes the trait manifest, while women may have one of their x-chromosomes with the recessive trait and the other x-chromosome, with normal trait which the body sums up as recessive.

User Leoluyi
by
7.2k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.