Question

In humans Color-blindness is a recessive sex-linked trait. Perform a cross between a woman who is a carrier (heterozygous) and a man who is color-blind. What percent of their children will be color-blind? What percent of their sons will be color-blind?

Answer 1

In humans, color blindness is a recessive sex-linked trait. When a carrier woman and a color-blind man have offspring, 50% of the children will be color-blind. All of their sons will be color-blind.

Step-by-step explanation:

In humans, color blindness is a recessive sex-linked trait. When a woman who is a carrier (heterozygous) for color blindness has offspring with a color-blind man, there is a 50% chance that their children will be color-blind.

However, when it comes to their sons, all of them will have a 100% chance of being color-blind. This is because the gene for color blindness is located on the X chromosome, and males only have one X chromosome.