-A curious adult from Massachusetts
November 18, 2004
Well, your blood is definitely all your own. But because of how the genetics of blood type works, it could seem like you have your mom's blood type, your dad's blood type, or a mix of the two.
For every gene, you get two copies -- one from your mom and one from your dad. Even though the two copies are for the same gene, you can get different versions from each parent. These different versions are called alleles.