NEET-UG Biology · Class 11
Blood groups and safe transfusion — NEET & JEE Questions
Blood groups and safe transfusion is a topic in Body Fluids and Circulation, a Class 11 Biology chapter of the NEET-UG syllabus. TestBudy holds 14 published NEET-UG questions on Blood groups and safe transfusion, each with the marking scheme of the real paper. The ideas it examines include Antigens and antibodies in each blood group, Who can safely donate to whom, Rh clash between mother and baby.
- questions
- 14
- shown here
- 10
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Key formulas and concepts
The ideas Blood groups and safe transfusion is examined on, as they are tagged in the syllabus tree.
- Antigens and antibodies in each blood group
- Who can safely donate to whom
- Rh clash between mother and baby
Blood groups and safe transfusion MCQs with solutions
10 of the 14 published questions on this topic, exactly as they appear in a test. Answers and worked solutions come with your result rather than on this page.
A person with blood group A has on red cells:
- A. B antigen
- B. no A or B antigen
- C. A antigen
- D. both A and B antigens
Haemolytic disease of a later Rh-positive fetus may occur when an Rh-negative mother becomes sensitised:
- A. erythroblastosis foetalis
- B. thalassaemia
- C. haemophilia
- D. sickle-cell disease
A person with blood group A has which ABO antigen-antibody combination?
- A. Both A and B antigens with no antibodies
- B. B antigen on erythrocytes and anti-A antibodies in plasma
- C. A antigen on erythrocytes and anti-B antibodies in plasma
- D. No A or B antigens with both anti-A and anti-B antibodies
Why can an individual with blood group AB receive red blood cells from any ABO group when other compatibility requirements are satisfied?
- A. AB erythrocytes cannot undergo agglutination
- B. The erythrocytes lack both A and B antigens
- C. The blood contains both anti-A and anti-B antibodies
- D. The plasma lacks anti-A and anti-B antibodies
A person with blood group A normally has which ABO antigen on red blood cells?
- A. A antigen
- B. B antigen
- C. Both A and B antigens
- D. Neither A nor B antigen
A person with blood group O has red blood cells that normally carry
- A. neither A nor B antigen
- B. both A and B antigens
- C. A antigen only
- D. B antigen only
A person with group B blood urgently needs packed red blood cells. Which ABO donor group is compatible on the basis of the major red-cell antigens?
- A. Group B or group O
- B. Group A only
- C. Group AB only
- D. Group A or group AB
Why are group O red blood cells often described as universal donor cells in the ABO system?
- A. Their plasma contains neither anti-A nor anti-B antibodies
- B. They lack both A and B antigens on their surface
- C. They carry both A and B antigens
- D. They lack haemoglobin
Why can an incompatible ABO transfusion be dangerous?
- A. Recipient antibodies can bind donor red-cell antigens and cause agglutination or haemolysis
- B. Donor red cells immediately become platelets
- C. Plasma loses all proteins
- D. White blood cells turn into red cells
For red-cell transfusion under the ABO system alone, which donor type is generally safest for a group O recipient?
- A. Group O
- B. Group A
- C. Group B
- D. Group AB
Common mistakes in Blood groups and safe transfusion
Recorded against questions in this topic that are not shown above, so none of these points at an answer you can see on this page.
- Thinking the first Rh-positive fetus directly loses all erythrocytes rather than maternal sensitisation creating the later risk.
- Checking only the ABO group or only the Rh factor instead of requiring compatibility for both.
- Labels the blood group from the antibody rather than the red-cell antigen.
- Assumes ABO and Rh typing detects every possible red-cell incompatibility.
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