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.
A female with one affected X chromosome is a carrier of hemophilia. Sometimes a female who is a carrier can have symptoms of hemophilia. In addition, she can pass the affected X chromosome with the clotting factor gene mutation on to her children.Learn more about the inheritance pattern for hemophilia.here are several different types of hemophilia. The following two are the most common: 1  Hemophilia A (Classic Hemophilia). 2  This type is caused by a lack or decrease of clotting factor VIII. 3  Hemophilia B (Christmas Disease). 4  This type is caused by a lack or decrease of clotting factor IX.