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

Question

A colour blind girl is rare because she will be born only when (A) her mother and maternal grand father were colour blind (B) her father and maternal grand father were colour blind (C) her mother is colour blind and father has normal vision (D) parents have normal vision but grand parents were colour blind.

Tardigrade Admin · Accepted Answer

A colour blind girl is rare because she will be I born only when her father and maternal grand father j were colour blind. The genotype of the mother was to be either XCXC or XCX and that of father XCY so that the daughter becomes colour blind.

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

her mother and maternal grand father were colour blind

her father and maternal grand father were colour blind

her mother is colour blind and father has normal vision

parents have normal vision but grand parents were colour blind.

A colour blind girl is rare because she will be I born only when her father and maternal grand father j were colour blind. The genotype of the mother was to be either X^CX^C or X^CX and that of father X^CY so that the daughter becomes colour blind.