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Among eukaryotes, replication of DNA takes place in:
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The correct answer is:
S phase
Cell cycle has two main phases:
- Interphase (I-phase) is the longest and metabolically active phase which has three phases, gap-1 (), S and gap-2 ().
- Division or M-phase, where actual mitosis (or meiosis) takes place.
S phase:
- Also called the invisible phase.
- The DNA replication takes place at this phase of interphase.
- The 2C DNA content of a cell becomes 4C at the end of S-phase.
- There is no change in the ploidy level.
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