The genes are inherited from our biological parents in a certain way. One of the basic models for the genetics of our genes is called diving genetics connected to X. Women have two X chromosomes; Men with X and Y genes. On the X chromosome can be diving or dominating.
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Your expression in women and men is not the same. The genes in chromosomes are not accurate with the genes of the X chromosome. The diving genes are connected to X only expressed in women if there are two copies of the gene (one on each chromosome X ). However, for men, only a copy of a recessive gene is connected to X so that the line or disorder is manifested. For example, a woman may use a diving gene on one of the X chromosomes without knowing the generation. There is a 50% probability that a girl is not a gene and therefore cannot be transferred. There is a 50% probability that the topics have no genes and healthy. However, the probability of 50% is a child inherited gene and shows the line or disorder. Simple green blindness means that a person cannot distinguish red and green tones (generally blue). Its visual liking (visible ability) is normal. No serious complications; However, affected people cannot take into account some industries with transportation or armed forces where color identification. Men are affected more often than women because the gene is in X. Hemophilia is a chromosome. Hemophilia A is a change in which blood can not coagulate properly due to lack of coagulation factor called factor VIII. The result is abnormal bleeding, but they do not stop for a small cup. People with hemorrhoids are difficult to clot and may have internal bleeding in their joints and muscles. The appearance of Hemophilia A (lack of factor VIII) is about 1 male living is 4,500. The appearance of Hemophilia B (lack of IX element) is the birth of 20,000 living men. Hémophilia explains most cases. The treatment is available through the transmission of element VIII (blood transfusion). Gen users may have some small signs of lack of factor VIII, such as: B. Ice or more time than usual to stop bleeding when cutting. However, not all women have these symptoms. We believe that one -third of all cases are new changes in the family (not inherited from the mother).