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Aug 13, 2016

Second layer of information in DNA confirmed

Posted by in categories: biotech/medical, genetics, physics

Leiden theoretical physicists have proven that DNA mechanics, in addition to genetic information in DNA, determines who we are. Helmut Schiessel and his group simulated many DNA sequences and found a correlation between mechanical cues and the way DNA is folded. They have published their results in PLoS One.

When James Watson and Francis Crick identified the structure of DNA molecules in 1953, they revealed that DNA information determines who we are. The sequence of the letters G, A, T and C in the famous double helix determines what proteins are made ny our cells. If you have brown eyes, for example, this is because a series of letters in your DNA encodes for proteins that build brown eyes. Each cell contains the exact same letter sequence, and yet every organ behaves differently. How is this possible?

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Comments — comments are now closed.

  • Talli on August 14, 2016 11:47 am

    You got a typo on your first page, by instead of in

  • Talli on August 14, 2016 11:49 am

    Oh sweet, so my comment now is also a typo that was NY instead of in!!!

  • Caro on August 15, 2016 5:36 am

    Why did you fail to mention Rosalind Frankland