This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.
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The question asks how many blood groups the RH System is made up of. The Rh blood group system classifies blood based on the presence or absence of the Rh factor, specifically the D antigen, on the surface of red blood cells. If the D antigen is present, the blood is classified as Rh-positive. If the D antigen is absent, the blood is classified as Rh-negative. Therefore, the Rh system consists of two main blood groups. The final answer is 2 Last free one today — make it count tomorrow, or type /upgrade for unlimited.