English, asked by vb6193902, 24 days ago

ten preposition eng to Hindi​

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Answered by jagruti6551
12

Answer:

A person’s Rh group can be positive (+) or negative (-).This depends on the existence of antigen RhD on the red blood cells. If the RhD antigen is present, a person is Rh positive and if RhD is not present, the person is Rh negative.

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