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.
Hemophilia is an X linked or sex linked inherited disorder which means that the defect is carried on the X chromosome. Females have two X chromosomes and males have one X chromosome and one Y chromosome. The X chromosome, which carries the hemophilia gene in males, causes Factor VIII or Factor IX to be missing or deficient (low level). Each child of a hemophilia carrier has a 50% chance of being affected by hemophilia; either having hemophilia for a male or being a carrier for a female.