🏫 Board🧬 Biology

Cell Cycle and Cell Division

2 Board Biology previous year questions on Cell Cycle and Cell Division — options free on every question; 1 include the answer & explanation free, the rest unlock with PYQ Pass.

Q1 FREE PREVIEW

In which phase of the cell division does DNA replication take place?

\({G}_{1}\) phase

S-phase

\({\mathrm{G}}_{2}\) phase

\({\mathrm{G}}_{0}\) phase

✓ Correct answer: b)

S-phase

Explanation

Interphase has three stages- G1, S, and G2.
Among them, S-phase is the stage where DNA duplicates so that each daughter cell receives an identical set of chromosomes.

Dissolution of the synaptonemal complex occurs during:

Zygotene

Diplotene

Leptotene

Pachytene

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