A colour blind girl is rare because she will be born only when

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

Q. Both male and female have normal vision though their fathers were colour blind, and mother did not have any gene for colour blindness. The probability of their daughter becoming colour blind is

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

Q. What is the inheritance of colour blindness of both parents having a normal vision but mother having a recessive gene for colour blindness?

Q. A normal visioned woman, whose father is colour blind, marries a normal visioned man. What would be the probability of her sons and daughters to be colour blind? Explain with the help of a pedigree chart.