Question

A family has four children: two girls and two boys. One girl and one boy are color-blind. Explain if their parents are color-blind and how you know.
Plzzz help!!!

Answer 1

both parents are carriers for the color blindness gene, this means that while both parents are not color blind they have the ability to create color blind children. example: for the example i am using B for dominant non color blind and b for recessive color blindness. in the example i have made a (badly drawn) Punnett square. since both parents are their odds of haveing a color blind child are 1/4.