Question

Males have only a single X chromosome. When is there a 0% chance that they will inherit color blindness on that chromosome? A. when the mother and the father have the disorder B. when the father has normal vision and the mother is a carrier C. when the mother has the disorder and the father has normal vision D. when the father has the disorder and the mother has normal vision

Answer 1

so a

Step-by-step explanation:

Answer 2

the answer is a when the mother and the father have the disorder