Per general etiquette, the mother of the bride buys her wedding day outfit first, then notifies the mother of the groom about the color, length and overall formality of her choice. But if the groom's mom doesn't get word by the four-month mark, she should touch base with the bride-to-be about what to do.
Genetics. The two main types of hemophilia are caused by gene mutations that affect the levels of clotting factors in the blood. Mutation of the FVIII gene leads to hemophilia A, also called classic hemophilia, while a mutations in the FIX gene leads to hemophilia B, also called Christmas disease.
The gene that causes hemophilia is often linked to a personâs sex. Males with the altered gene will have symptoms while females may or may not have symptoms. The chances of inheriting the gene also depend on which parent has the gene and if the child is male or female. There are 3 types of hemophilia: Hemophilia A: Caused by low levels of clotting factor VIII (clotting factor 8). This is the most common type of hemophilia. Hemophilia B: Caused by low levels of clotting factor IX (clotting factor 9).