OVERVIEW OF THE IMMUNE SYSTEM
LYMPHATIC TISSUES AND ORGANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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+ or-
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the number of antigens
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the number of antibodies
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aggulation
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Detailed explanation-1: -Rh factor is an inherited protein found on the surface of red blood cells. If your blood has the protein, you’re Rh positive. If your blood doesn’t have the protein, you’re Rh negative. The “+” or “–” you might see after your blood type refers to Rh positive or Rh negative.
Detailed explanation-2: -Two separate genes for the Rh system are found on chromosome 1. One gene, RHD, encodes for the D antigen. Individuals with the D antigen present on their red blood cells are labeled as “Rh (D)–positive.” Those who do not have the D antigen are labeled as “Rh (D)–negative."
Detailed explanation-3: -There are 5 main Rh antigens on red cells – C, c, D, E, e. The most important of these is the Rh D. Having the D antigen on the red cell gives you the positive (+) and lacking it gives you the negative (-) after the letter A, B, AB or O.