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In ‘S’ phase of the cell cycle:

1. Amount of DNA doubles in each cell.
2. Amount of DNA remains same in each cell.
3. Chromosome number is increased.
4. Amount of DNA is reduced to half in each cell.

Correct answer: Amount of DNA doubles in each cell.

Solution

In S phase, the cell replicates its DNA in preparation for division. This doubles the DNA content in each cell, while the chromosome number stays the same until sister chromatids separate.

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