CUET · BIOLOGY · PYQ PAPER 2023

Bt toxins are insect group specific proteins. Gene named crylAc and cryllAb control:

A Cotton bollworms
B Corn borer
C Tobacco budworm
D Armyworm

Verified Solution

Answer & Solution

Correct Answer

(A) Cotton bollworms

Step-by-step Solution

Detailed explanation

Cotton bollworms

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

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From CUET

Match List-I with List-II

List-I	List-II
(A) The maximum value of \(f(x)=\sin (3 x)+6\)	(I) 2
(B) The maximum value of \(f(x)=-\|x+2\|+4\)	(II) 5
(C) The maximum value of \(f(x)=(3 x+1)^2+5\)	(III) 7
(D) The maximum value of \(f(x)=2 \cos x+4\)	(IV) 4

Choose the correct answer from the options given below:

CUET 2025 Medium

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LIST I	LIST II
A. Gobar gas	I. Citric acid
B. Aspergillus niger	II. Methane
C. Saccharomyces cerevisiae	III. Antibiotic
D. Penicillium notatum	IV. Ethanol