AP BIOLOGY

Detailed explanation-1: -You inherit a gene from each parent so your blood type may not be the same as your parents. For example: If you inherit an A from one parent and an O or A gene from another parent, you will have type A blood. Type B from one parent and type O or another type B gene from the other parent will give you type B blood.

Detailed explanation-2: -Everyone inherits two alleles of the gene, one from each parent. The combination of your two alleles determines your blood type. The table on the left shows all of the possible combinations of blood type alleles.

Detailed explanation-3: -Blood type is inherited through an inheritance pattern called codominance. In humans, red blood cells have proteins with sugars attached to the surface of red blood cells. These sugars act as antigens, structures that can activate the immune system. Those antigens come in two forms: type A antigens and type B antigens.

Detailed explanation-4: -A baby may have the blood type and Rh factor of either parent, or a combination of both parents. Rh factors follow a common pattern of genetic inheritance. The Rh-positive gene is dominant (stronger) and even when paired with an Rh-negative gene, the positive gene takes over.