A Recessive Trait Carried on the X Chromosome Acts Like

Question

A recessive trait carried on the X chromosome acts like a dominant trait in a male offspring.

Accepted Answer

This is because males only have one X chromosome, so if they inherit an X chromosome with a recessive trait, they will express that trait because there is no other dominant allele to mask it. Females, on the other hand, have two X chromosomes, so they can carry a recessive trait on one X chromosome and still have a dominant allele on the other X chromosome, effectively masking the recessive trait.