Since colorblindness is a sex-linked recessive trait:
A) fathers of all colorblind sons must be colorblind
B) fathers of all colorblind daughters must be colorblind
C) mothers of all colorblind daughters must be colorblind
D) mothers of all colorblind sons must be colorblind
E) all the sons of carrier females will be colorblind
Ideas are explored.
Since colorblindness is sex-linked that means that it exists on the X chromosome. Therefore, if a male has the gene, he will be color-blind. On the other hand, a woman must receive two copies of the gene on both of her X chromosomes to become color blind. This occurs because the ...
This job examines the notion that colorblindness is sex-linked.