CUET · BIOLOGY · PYQ PAPER 2023

Identify the set of cells which have haploid number of chromosomes ?

A Egg cell and Synergid cell
B Egg cell and Nucellar cell
C Zygote and Egg cell
D Zygote and Antipodal cell

Verified Solution

Answer & Solution

Correct Answer

(A) Egg cell and Synergid cell

Step-by-step Solution

Detailed explanation

Egg cell and Synergid cell

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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(A) Divergent evolution	(I) Eye of the octopus and mammals
(B) Convergent evolution	(II) Forelimbs in vertebrate animals
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