Question:
Blood grouping is basically possible because of the presence of following:
Blood grouping is basically possible because of the presence of following:
Updated On: Feb 10, 2026
- Antigens on RBCs
- MHCs on WBCs
MHCs on RBCs
- Antigens on WBCs
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Blood grouping is primarily determined by the presence of specific antigens on the surface of red blood cells (RBCs). Let's explain why the correct answer is "Antigens on RBCs" and why the other options are incorrect.
- Antigens on RBCs:
- Blood groups are categorized based on the presence or absence of specific antigens on the surface of red blood cells. The most common blood group systems are the ABO system and the Rh system.
- The ABO system classifies blood into four main types: A, B, AB, and O, depending on the specific antigens present on the RBCs.
- The Rh system further classifies blood as Rh-positive or Rh-negative, based on the presence or absence of the Rh antigen (also known as the D antigen) on the RBCs.
- MHCs on WBCs:
- MHC (Major Histocompatibility Complex) molecules are found on white blood cells (WBCs) and other tissues, primarily involved in the immune response.
- They have no role in blood grouping.
- MHCs on RBCs:
- As mentioned, MHC molecules are not present on red blood cells at all; hence, this option is incorrect.
- Antigens on WBCs:
- While white blood cells do have antigens, these antigens are not used for blood grouping. Blood grouping is exclusively based on antigens present on RBCs.
Therefore, the correct answer is indeed Antigens on RBCs as they are the crucial determinants in blood grouping based on the ABO and Rh systems.
Was this answer helpful?
0
0
Top GPAT Human Anatomy and Physiology Questions
In human body ‐‐‐‐‐ system operates to maintain pH of blood plasma.
- Tendon rupture or tendonitis of Achilles tendon is an adverse reaction of
- The quadruple therapy of Helicobacter pylori infection includes
- Which of the following is/are not true about Parkinson’s disease?
A. Parkinson’s disease is caused by the degeneration of the substantia nigra in the midbrain.
B. Parkinson's disease is caused by the degenerative loss of nigrostriatal dopaminergic neurons.
C. Bradykinesia, rigidity and tremor are the main symptoms in Parkinson’s disease.
D. Parkinson's disease is caused by the degenerative loss of nigrostriatal cholinergic neurons.
Choose the correct answer from the options given below: - Formation and maintenance of myelin sheath around CNS axons are done by
View More Questions
Top GPAT Blood Questions
In human body ‐‐‐‐‐ system operates to maintain pH of blood plasma.
When RBCs are kept in isotonic NaCl solution
- Hemophilia A is caused due to the reduction in the quantity or activity of which of the following clotting factors?
- Human Serum Albumin has a molecular weight of:
- Which of the following inactive clotting factor is activated by the vitamin-K as a co-enzyme?
View More Questions
Top GPAT Questions
- Match the symbols in the List I with the terms used in the List II of conductance measurements, and
List I
SymbolsList II
TermsA \(\Omega^{-1}\) I Specific conductance B \(∧\) II Electrical conductance C k III Specific resistance D \(\rho\) IV Equivalent conductance
Choose the correct answer from the options given below: - Cottrell’s method is used for the measurement of:
- Match the statements in List I with their correct answers in List II, respectively, in respect to modified 1st law of thermodynamics, and
List I
List II
A Constant heat (q = 0) I Isothermal B Reversible process at constant temperature (dT = 0) II Isometric C Constant volume (dV = 0) III Adiabatic D Constant pressure (dP = 0) IV Isobar
Choose the correct answer from the options given below: - Boric acid with molecular weight 61.83 was partitioned between water and amyl alcohol at 25 °C. The amount of boric acid was determined to be 0.24 g in 250 ml of amyl alcohol and 0.32 g in 100 ml water. The partition coefficient of boric acid between water and amyl alcohol, when calculated at molar concentration for each of the solution, is:
- Drugs ‘A’, ‘B’ and ‘C’ follow zero order, first order and second order degradation kinetics, respectively, but have the same rate constant. Which of the following statement is true in this respect:
View More Questions