How is a Person Blood Type Determined?
A person’s blood type is determined through genetics and never changes. Genetic code, which is also known as alleles, is passed on to a child from both parents. The number nine chromosome has a specific allele which contains the donor parent’s blood type. The parent who has the dominant blood type will be the determining factor of the child’s blood type. You can find more information here: http://www.wisegeek.com/what-determines-…
