Blood group antigens can be found in:
Correct answer: D. All A, B, C
- A. R.B.Cs
- B. Body fluids
- C. Saliva
- D. All A, B, C
Explanation
Option D is correct. Yes, blood group antigens can be found in red blood cells (RBCs), body fluids, and saliva.RBCs contain the A, B, and O antigens, which are proteins that are attached to the surface of the cells. The A and B antigens are responsible for the ABO blood group system, while the O antigen is responsible for the O blood group. These antigens can also be found in other body fluids, such as saliva, semen, and sweat. However, the levels of antigens in these fluids are typically lower than the levels in RBCs.The presence of blood group antigens in saliva can be used to determine a person's blood type. This is done by using a test called the saliva-blood group test. The saliva blood group test is a simple and non-invasive test that can be performed in a doctor's office or at home. The saliva blood group test can be used to determine a person's blood type, which is important for blood transfusions. It can also be used to determine a person's risk of developing certain diseases, such as hemolytic disease of the newborn.
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