CUET · BIOLOGY · PYQ PAPER 2023

Biolistics (gene gun) is suitable for:

A Introducing rDNA into plant cells
B Introducing rDNA into animal cells
C Disarming the pathogen vectors
D DNA fingerprinting

Verified Solution

Answer & Solution

Correct Answer

(A) Introducing rDNA into plant cells

Step-by-step Solution

Detailed explanation

Introducing rDNA into plant cells

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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List I (Name)	List - II (Functions)
(A) mRNA	(I) amino acid carrier
(B) rRNA	(II) structural and catalytic role during translation
(C) tRNA	(IV) template for protein synthesis
(D) cistron	(III) gene

LIST I	LIST II
A. Soda Water	I. A solution of gas in gas
B. Sugar Solution	II. A solution of solid in solid
C. German Silver	III. A solution of solid in liquid
D. Air	IV. A solution of gas in liquid