Question

A colour blind man married a normal woman whose father and mother both had
normal colour vision. Will any of their sons be colour blind? If not why not.

Answer 1

Answer:

yes it may be as chromosomes contains unit called genes and they are responsible for transmitting characteristics from parents to offsprings

as they may get the genes of the father

Answer 2

Answer:

no

Explanation:

usually normal colour vision is dominant.. moreover colour blindness is not an inherited trait , i.e. it is not something that can be passed on to generations because the man has acquired it by his own doing... lets say, for example, if you cut the tail of a mouse, its kids will still have a tail.. (quite a kiddish reference, but will do.)