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NEET2005BotanyCell Cycle and Cell DivisionActual

At what stage of the cell cycle arc histone proteins synthesized in a eukaryotic cell?

Options

  1. Aduring G ₂ stage of prophase
  2. Bduring S-phase
  3. Cduring entire prophase
  4. Dduring telophase.

Correct answer

B. during S-phase

Step-by-step solution

Cell cycle is the series of events in which cells replicate and make two new cells. Cell cycle consists of stages- G₁, S, G₂ , and M (karyokinesis). G ₁ is the stage where the cell is preparing to divide. It then moves into the S phase where the cell copies all the DNA. S stands for synthesis phase of DNA. Histone proteins are also synthesised during the phase. After the DNA is copied and there's a complete extra set of all the genetic material, the cell moves into the G ₂ stage, where it organizes and condenses th

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