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How do blood types get inherited?

Quick Answer

Blood type is inherited through genes that control the A, B, and O antigens on red blood cells. A child gets one version of the gene from each parent.

The Full Story

The ABO blood group system depends on a gene that determines whether red blood cells carry A antigen, B antigen, both, or neither. A and B are codominant, while O usually results from a nonfunctional version of the gene. Another important blood group system is Rh, especially the Rh D antigen, which is often described as positive or negative. These inherited patterns matter in transfusion medicine and pregnancy care.

Key Facts

1.ABO is the best-known blood group system
2.Rh status is often described as positive or negative
3.Blood type depends on inherited antigens on red blood cells

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Suggested video title for this topic:

"Why your blood type comes from your parents’ genes"

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