CUET · BIOLOGY · PYQ PAPER 2025

Which is not the salient feature of human genome project-

A Less than 2 per cent of the genome codes for proteins.
B Repeated sequences make up very small portion of the human genome.
C The functions are unknown for over 50 per cent of the discovered genes.
D The average gene consists of 3000 bases, but sizes vary greatly, with the largest known human gene being dystrophin at 2.4 million bases.

Verified Solution

Answer & Solution

Correct Answer

(B) Repeated sequences make up very small portion of the human genome.

Step-by-step Solution

Detailed explanation

Repeated sequences make up very small portion of the human genome.

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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