Person with blood group \(AB\) is considered as universal recipient because he has

A both \(A\) and \(B\) antigens on \(RBC\) but no antibodies in the plasma
B both \(A\) and \(B\) antibodies in the plasma
C no antigen on \(RBC\) and no antibody in the plasma
D both \(A\) and \(B\) antigens in the plasma but no antibodies.

Verified Solution

Answer & Solution

Correct Answer

(A) both \(A\) and \(B\) antigens on \(RBC\) but no antibodies in the plasma

Step-by-step Solution

Detailed explanation

(a) : Individuals with \(AB\) blood group have both antigen \(A\) and \(B\) on their \(RBCs\), and no antibodies for either of the antigen in their plasma. Type \(O\) individuals are without \(A\) and \(B\) antigens on their \(RBCs\), but have antibodies for both these antigens in their plasma. Individuals with blood group \(AB\) can receive blood of \(A, B\) or \(O\) group, while those with blood group \(O\) can donate blood to anyone.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Given below are two statements: Statement \(I:\) Restriction endonucleases recognise specific sequence to cut DNA known as palindromic nucleotide sequence. Statement \(II:\) Restriction endonucleases cut the \(DNA\) strand a little away from the centre of the palindromic site. In the light of the above statements, choose the most appropriate answer from the options given below :

NEET 2022 Medium

Match List-I with List-II.

List - I	List - II
A. Emphysema	(I) Rapid spasms in muscle due to low Ca⁺⁺ in body fluid
B. Angina pectoris	(II) Damaged alveolar walls and decreased respiratory surface
C. Glomerulonephritis	(III) Acute chest pain when not enough oxygen is reaching to heart muscle
D. Tetany	(IV) Inflammation of glomeruli of kidney

Choose the correct answer from the options given below :

NEET 2025 Medium

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\((A)\) Gonorrhoea	\((i)\) HIV
\((B)\) Syphilis	\((ii)\) Neisseria
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\((D)\) AIDS	\((iv)\) Human papilloma virus