![]() To paint a clearer picture, this chart shows your baby’s potential blood type based on those of their parents: Environmental factors mean that some blood types are more likely to be passed on, which is why 36% of the UK has O+. Each parent passes on one of two ABO alleles (variant of a gene) to their baby. ![]() The blood groups that make up a person’s blood type are 100% inherited from their parents. This Rh factor determines whether your blood type is positive (+) or negative (-). ![]() For example, blood group A has A antigens on the red blood cells with anti-B antibodies in the plasma.Īs well as falling into the A, B, AB or O group, blood can contain a protein called the RhD antigen. These groups identify the different antigens found on red blood cells and antibodies found in plasma. However, determining blood type isn’t as black and white as some may think.įirstly, a person’s type can fall within one of four main blood groups: A, B, AB, and O. Simply put, your blood type is identified from antigens and antibodies found in the blood. Here, we simplify the science behind blood type and explain why more parents-to-be should identify their baby’s type before birth. From pregnancy through to their adult life, your child’s blood type is one of the most important pieces of genetic information to be aware of. A mother and father’s genes play a significant role in their baby’s development from growth in the womb, to blood type.
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