AB group persons are considered universal recepeints because

Options

A. both the antigens are present on RBC
B. both the antibodies are present in plasma
C. agglutinins are absent in plasma
D. agglutinogens are absent on RBC

Answer

**Step-by-Step Solution:**

1. **Understanding Blood Groups**: Blood groups are determined by the presence or absence of specific antigens on the surface of red blood cells (RBCs) and antibodies in the plasma. The main blood groups are A, B, AB, and O.

2. **Identifying the AB Blood Group**: Individuals with blood group AB have both A and B antigens on their RBCs. This means that their RBCs can recognize both types of antigens.

3. **Absence of Antibodies**: People with blood group AB do not have anti-A or anti-B antibodies in their plasma. This is crucial because antibodies are responsible for attacking foreign antigens.

4. **Universal Recipient Explanation**: Since AB individuals have both A and B antigens on their RBCs and lack anti-A and anti-B antibodies, they can receive blood from any other blood group (A, B, AB, or O) without the risk of an immune reaction.

5. **Conclusion**: Therefore, AB group persons are considered universal recipients because they can accept blood containing any antigens (A, B, or both) without the risk of agglutination.

**Final Answer**: AB group persons are considered universal recipients because both A and B antigens are present on their RBCs (Option A).

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