Botany-DNA Replication

NEET Botany DNA Replication Assertion Reason Question

Type: Assertion Reason-assertion-Medium-Class 12

Assertion (A): DNA replication in eukaryotes occurs during the S-phase of the cell cycle. | Reason (R): DNA replication and cell division cycle must be highly coordinated to prevent polyploidy.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false but R is true.

Correct Answer

Option A

Detailed Explanation

The NCERT text states that DNA replication in eukaryotes takes place during the S-phase and that it must be coordinated with the cell division cycle to avoid polyploidy, thus making R a valid explanation for A.

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