Question:

In the somatic cell cycle

Updated On: Oct 12, 2023

  • DNA replication takes place in S-phase

  • A short interphase is followed by a long mitotic phase

  • G2 phase follows mitotic phase

  • In G1 phase DNA content is double the amount of DNA present in the original cell 

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Solution and Explanation

The somatic cell cycle pertains to the cell cycle occurring in non-reproductive cells. This cycle encompasses just two main phases: interphase and the M phase. Interphase, in turn, includes three distinct stages: G1 phase, S phase, and G2 phase. During the S phase, DNA replication occurs, priming the cell for the upcoming division process.
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Concepts Used:

Cells

  • A device that converts chemical energy into electrical energy is called an electric cell. To an electric circuit, the battery provides the constant electromotive force.
  • Each cell comprises 2 half cells which are connected in series by a conductive electrolyte containing anions and cations:
    • One-half cell is made up of electrolyte and a negative electrode called an anion.
    • The other half cell is made up of electrolytes and a positive electrode called a cathode.
  • Redox reactions take place simultaneously.
  • While charging, cations are reduced at the cathode, and anions are oxidized at the anode.
  • Electrodes do not join each other as they are electrically connected by the electrolyte.