KCET · BIOLOGY · STD 11 - 10. Cell Cycle and Cell Division

Identify the event in meiosis mediated by the enzyme recombinase.

A Interkinesis
B Synaptic pairing
C Terminalisation
D Crossing over

Verified Solution

Answer & Solution

Correct Answer

(D) Crossing over

Step-by-step Solution

Detailed explanation

(D) Terminalisation,
Crossing over is the exchange of genetic material between two homologous chromosomes. It is an enzyme mediated process and the enzyme involved in this process is called recombinase.

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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