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.
SAT and ACT Requirements. Each school has different requirements for standardized testing. Most schools require the SAT or ACT, and many also require SAT subject tests. You must take either the SAT or ACT to submit an application to Harvard.
If you want to get in, the first thing to look at is the acceptance rate. This tells you how competitive the school is and how serious their requirements are. The acceptance rate at Harvard is 6%. For every 100 applicants, only 6 are admitted. This means the school is extremely selective. Meeting their GPA requirements and SAT/ACT requirements is very important to getting past their first round of filters and proving your academic preparation.