Class 12 · Molecular Basis of Inheritance

DNA Replication & Cell Division Coordination — NEET Biology

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Further, not every detail of replication is understood well. In eukaryotes, the replication of DNA takes place at S-phase of the cell-cycle. The replication of DNA and cell division cycle should be highly coordinated. A failure in cell division after DNA replication results into polyploidy (a chromosomal anomaly). You will learn the detailed nature of origin and the processes occurring at this site, in higher classes.

NCERT Biology · Class 12 · Chapter 5 · Paragraph 69
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Assertion (A): DNA replication is restricted to a specific phase of the cell cycle in eukaryotes. Reason (R): In eukaryotes, DNA replication takes place during the G1 phase of the cell cycle.

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