Suppose a father has red-green color deficiency and the mother has normal color vision.What color vision will their children have?

Question

Suppose a father has red-green color deficiency and the mother has normal color vision.What color vision will their children have?​

Quizplus · Accepted Answer

The gene for red-green color deficiency is located on the X chromosome. The father, being male, only has one X chromosome and it carries the color deficiency gene. The mother, being female, has two X chromosomes and has a normal gene on one of her X chromosomes. Therefore, their sons will inherit the color deficiency gene from the father, making them color deficient. However, their daughters will inherit one normal gene from the mother, which will mask the color deficiency gene on the father's X chromosome, making them have normal color vision. Therefore, all the children will have normal color vision, but the daughters could pass on the color deficiency gene to their sons.

Suppose a Father Has Red-Green Color Deficiency and the Mother