What is DNA copying? State its importance.

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Jasmine Grover

Education Journalist | Study Abroad Lead

DNA copying, known as DNA replication, is the process of producing two identical DNA copies during cell division from an original DNA molecule.

  • It helps in generating variations during sexual reproduction leading to evolution.
  • DNA copying also helps to transfer characteristics or information from parents to the offspring. 
  • DNA is formed of a double helix structure that has 2 complementary strands.
  • During DNA copying, the 2 complementary strands get separated.
  • RNA is involved in the process of replication. DNA copying in the eukaryotic cells occurs in the S phase of the cell cycle.

DNA Copying

Importance of DNA Copying

DNA Copying or Replications is important as – 

  • DNA Replication helps in the transmission of traits from parents to their children.
  • It ensures that the daughter cell produced as a result of cell division receives an identical DNA amount.
  • It leads to evolution by producing variety in sexual reproduction.

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CBSE CLASS XII Related Questions

  • 1.

    Read the following passage and answer the questions that follow: 
    The data below shows the concentration of nicotine smoked by a smoker taking 10puffs/minute.
     


      • 2.
        Work out the crosses between:
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        (III) Carrier female and Haemophilic male
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          • 3.
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              • 4.
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                Explain charging of tRNA (aminoacylation of tRNA) and mention its importance in the process of translation.


                  • 5.
                    Describe the series of experiments conducted by Frederick Griffith. Comment on the significance of the result obtained.
                    State the contribution of Avery, MacLeod and McCarty.


                      • 6.
                        Cow dung and water are mixed and fed into a biogas plant to allow digestion of biowastes. The person performing this process says that there is no need to provide an inoculum.
                        Do you agree with him? Justify your answer.
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                          CBSE CLASS XII Previous Year Papers

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