NEET · Biology · STD 11 - 10. Cell cycle and cell division

Which one of the following never occurs during mitotic cell division?

A Movement of centrioles towards opposite poles
B Pairing of homologous chromosomes
C Coiling and condensation of the chromatids
D Spindle fibres attach to kinetochores of chromosomes

Verified Solution

Answer & Solution

Correct Answer

(B) Pairing of homologous chromosomes

Step-by-step Solution

Detailed explanation

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

Match List \(-I\) with List \(-II\) :

List \(-I\)	List \(-II\)
\(a\) In lac operon \(i\) gene codes for	\(i\) transacetylase
\(b\) In lac operon \(z\) gene codes for	\(ii\) permease
\(c\) In lac operon \(y\) gene codes for	\(iii\) \(\beta\) - galactosidase
\(d\) In lac operon \(a\) gene codes for	\(iv\) Repressor

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NEET 2022 Medium

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Match List I with List II :

List I (Respiratory Volume)	List II (Capacity in mL)
A. ERV (Expiratory Reserve Volume)	I. \(2500-3000 mL\)
B. RV (Residual Volume)	II. 500 mL
C. IRV (Inspiratory Reserve Volume)	III. \(1000-1100 mL\)
D. TV (Tidal Volume)	IV. \(1100-1200 mL\)

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NEET 2026 Easy

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