Why is DNA copying an essential part of the process of reproduction?


Haritha,Subject Matter Expert at Edumarz

Solution:Copying of DNA(Deoxyribonucleic acid) is an important method to create new cells.Cells use chemical reactions to make copies of their DNA.

DNA is located in the nucleus of the cell and acts as a source of information for the production of proteins.If any changes occur to information in proteins, then different proteins will form and it leads to the formation of altered body designs.So the creation of a DNA copy is considered a basic process in reproduction.


  • It is the hereditary material of humans 

  • Located in the nucleus of the cell

  • They form a double helix structure

  • It is formed of bases adenine,guanine,thymine and cytosine

  • Shows replication and forms copies of itself

  • The human genome contains around three million DNA bases

  • DNA tests are used to identify various genetic diseases


Discovery of DNA

  • Friedrich Miescher first identified a substance called nuclein in white blood cells.

  • Rosalind Franklin carried out X-ray crystallography and obtained images of DNA

  • Double helix structure of DNA invented by Watson and Crick

Diseases caused by DNA damage

  • Ataxia telangiectasia

  • Xeroderma pigmentosum

  • Bloom’s syndrome

  • Werner’s syndrome

  • Cancer

  • Li-Fraumeni-syndrome

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