Question: a man with hemophilia has a daughter of a normal phenotype?
Answer: Genotypes: A man with hemophilia is XhY where h = hemophilia gene and H = the normal gene. Any daughter with normal phenotype whose father has hemophilia will be a carrier. ... The probability that all 4 sons have inherited hemophilia would be: 1/2 x 1/2 x 1/2 x 1/2 or 1/16.