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Interphase

In 'S' phase ...

Question

In 'S' phase of cell cycle

A

Amount of DNA remains same in each

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B

Chromosome number is increased

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C

Amount of DNA is reduced to half in each cell

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D

Amount of DNA doubles in each cell

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Solution

The correct option is C Amount of DNA doubles in each cell
S phase (Synthesis Phase) is the phase of the cell cycle in which DNA is replicated, occurring between G1 phase and G2 phase. To produce two similar daughter cells, the complete DNA instructions in the cell must be duplicated. DNA replication occurs during this S (synthesis) phase.

So, the correct answer is 'Amount of DNA doubles in each cell'.

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Similar questions

Q. The DNA content of individual cells and the number of cells in each phase of a "cell cycle" can be determined using flow cytometry. Which of the following combinations of "phase of a cell cycle and its corresponding DNA content" can be considered normal?
(i) Diploid cells found in the

G_{0}

G_{1}

phase.
(ii) Cells with twice the normal DNA content in the early M phase.
(iii) Cells with intermediate amounts of DNA in the S phase.
(iv) Cells with twice the normal DNA content in the

G_{2}

Q. Select the correct option:The DNA content of individual cells and the number of cells in each phase of a " cell cycle" can be determined using flow cytometry. Which of the following combinations of "phase of a cell cycle and its corresponding DNA content" can be considered normal?
(i) Diploid cells found in the

G_{0}

G_{1}

phase.
(ii) Cells with twice the normal DNA content in the early M phase.
(iii) Cells with intermediate amounts of DNA in the S phase.
(iv) Cells with twice the normal DNA content in the

G_{2}

Q.
In which phase of the cell cycle DNA doubles and chromosomes replicate?

Q. In a diploid cell, at which stage of cell cycle, the amount of DNA is doubled

Q. DNA is ............, in G

_{2}

phase of cell cycle.

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