NEET · Biology · STD 12 - 7. human health and disease

Identify the wrong statement with reference to immunity.

A Foetus receives some antibodies from mother, it is an example for passive immunity.
B When exposed to antigen (living or dead) antibodies are produced in the host's body. It is called "Active Immunity".
C When ready-made antobodies are directly given, it is called "Passive immunity".
D Active immunity is quick and gives full response.

Verified Solution

Answer & Solution

Correct Answer

(D) Active immunity is quick and gives full response.

Step-by-step Solution

Detailed explanation

Active immunity is quick and glves full response.

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.

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