• Question: If all of the DNA were to vanish in the world, what would happen? Would all living things disappear? If so, how long would it take for everything to die?

    Asked by AnimalLover to Stéphane on 15 Mar 2018.
    • Photo: Stéphane Berneau

      Stéphane Berneau answered on 15 Mar 2018:

      We cannot remove the DNA from all the cells on Earth… However, the DNA could stop been repaired and also stopped being translated into RNA.

      In human, the entire body regenerate at a cellular level by also at a different speed.
      A new cell is available to replace expended cells. The turn over is:
      – Bone, 10 years.
      – Skin damages, 2 weeks
      – Liver, 300 to 500 days
      – Endometrium, every month (outside pregnancy)
      – Red blood cells, 4 months
      – small intestin epithelium, 2-4 days
      – Stomack, 2-9 days
      – Lung, 8 days
      – Tongue, 10 days
      – Sperm, 2 months

      If we only focus on the cell division, within less than 2 days, we are sick! It could even be quicker.

      A quick video about cell replacement in our body!

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