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

G_{1}

and

G_{2}

phase

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G_{0}

phase

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G_{2}

and M-phase

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S-phase

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Solution

The correct option is D S-phase
S phase is the phase of the cell cycle in which DNA is replicated, occurring between G₁ phase and G₂ phase. Following replication, each chromosome now consists of two sister chromatids (see figure below). Thus, the amount of DNA in the cell has effectively doubled, even though the ploidy, or chromosome count, of the cell remains at 2n.

So, the correct answer is 'S-phase'.

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If the cell cycle is restricted in $G_{1}$ phase of cell, the condition is known as

If the cell cycle is restricted in $G_{1}$ phase of cell, the condition is known as -

During which phase(s) of cell cycle, amount of DNA in a cell remains at 4C level if the initial amount is denoted as 2C?

Which phase comes in between the G₁ and G₂ phases of the cell cycle?

G_{0}

G_{1}

G_{2}

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