hemophilia

In the human body, each cell contains 23 pairs of chromosomes, one of each pair inherited through the egg from the mother, and the other inherited through the sperm of the father. Of these chromosomes, those that determine sex are X and Y. Females have XX and males have XY. In addition to the information on sex, 'the X chromosomes carry determinants for a number of other features of the body including the levels of factor …

…involve the inheritance of both recessive and deficient chromosomes. It is mostly found in males and since every male has a Y chromosome, it is a general rule that the male will not pass it to his male offsprings. Haemophiliacs can have either inherited the disease or they could have had a mutation. In either case, these people must try to live a normal life and must avoid any activities that can result in trauma.