Both husband and wife have normal vision thought their father were colour blind and mothers without any allele for colour blindness. The probability of their daughters becoming colour blind is

Both husband and wife have normal vision though their father were colour blind and mother did not have any gene for colour blindness .The probability of their daughter becoming colour blind is :

Both husband and wife have normal vision though their father were colour blind and mother did not have any gene for colour blindness .The probability of their daughter becoming colour blind is :

Both husband and wife have normal vision though their fathers were colour blind. The probability of their daughter becoming colour-blind is

If husband and wife have normal vision ,but father of both were colour blind ,probablity of their first daughter to be colour blind is :

Father of a child is colour blind and mother is carrier for colour blindness, the possibility of the child being colour blind is.................

A husband and wife have normal vision but fathers of both of them were colour blind. Probability of their first daughter to be colour blind is

If a colour blind man marries a woman who is homozygous for normal colour vision,the probability of their son being colour blind is :