Mating of a hemophilic male (XhY) to a normal female (XHXH) results in a normal son (XHY) and a carrier daughter (XHXh) in the F1 progeny. Intermarriage between F1 progeny resulted in F2 progeny with 1 normal son, 1 hemophilic son, 1 normal daughter and 1 carrier daughter.