The S-phase of cell cycle is characterized by:

Duplication of chromosome

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Shortening of chromosome

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Duplication of DNA

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Duplication of centriole

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Solution

The correct option is C Duplication of DNA
Synthesis phase or S-phase of interphase is the phase in the cell cycle during which DNA is replicated. Each chromosome consists of two sister DNA molecules having a duplicate set of genes but the cells retain the original diploid 2n number of chromosomes. Thus, only duplication of DNA occurs but the chromosome does not duplicate to form sister chromatids.

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The period occupied by a cell between post mitotic gap phase and semi-autonomous organelles duplication phase is characterized by:

The period occupied by a cell between the post-mitotic gap phase and semi-autonomous organelles duplication is characterized by:

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