The percentage probability that a normal male married to a carrier woman would have a haemophilic male child is

The percentage probability that a normal male married to a carrier woman would have a haemophilic male child is 50%. Hemophilia is a genetic disorder that is carried on the X chromosome. Since females have two X chromosomes, they can be either carriers or affected by the disorder. Males, on the other hand, have only one X chromosome and one Y chromosome, which means that if they inherit the hemophilia gene, they will have the disorder. When a carrier woman (who has one normal X chromosome and one X chromosome with the hemophilia gene) marries a normal male (who has one X and one Y chromosome), there is a 50% chance that any male offspring will inherit the hemophilia gene and develop the disorder. There is also a 50% chance that any female offspring will inherit the carrier status like their mother. Therefore, the percentage probability that a normal male married to a carrier woman would have a haemophilic male child is 50%.