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AIIMS 2013
Exam
AIIMS
Year
2013
Subject
Botany
Chapter
Cell Cycle and Cell Division

AIIMS 2013 · Botany · Cell Cycle and Cell Division

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

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

Options

  1. AG1\mathrm{G}_1 and G2\mathrm{G}_2 phase
  2. BG0\mathrm{G}_0 phase
  3. CS,G2\mathrm{S}, \mathrm{G}_2 and M\mathrm{M} phase
  4. DS phase

Correct answer

D. S phase

Step-by-step solution

S-phase is known as synthetic phase. In this stage replication of DNA takes place on the template of the existing DNA and thus the amount of DNA per cell doubles. If the initial amount of DNA is denoted as 2C2 \mathrm{C}, then it increases to 4C4 \mathrm{C}.
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