what is Rh-factor??????????
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Rh factor is a blood protein that plays a critical role in some pregnancies. People without Rh factor are known as Rh negative, while people with the Rh factor are Rh positive.If your blood has the protein, you're Rh positive. If your blood lacks the protein, you're Rh negative. Rh positive is the most common blood type.
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Rh-factor
In 1940, Landsteiner and Weiner discovered that apart from antigen A and B, another antigen discovered from Rhesus monkey, may be present on the surface of the RBCs in many people. This antigen was named as Rh-factor or Rhesus factor. The people (almost 85%- 90%) who possess the Rh-factor are called Rh+ and those who do not possess this factor are called Rh-
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