The two polynucleotide chains are coiled in a right handed fashion. What does this statement actually means ?

  • The "helix is right handed" or "coiled in a right handed fashion" indicates how the DNA coiling of DNA looks like.
  • Helices can be either right-handed or left-handed.
  • With the line of sight along the helix's axis, if a clockwise screwing motion moves the helix away from the observer, then it is called a right-handed helix.
  • If towards the observer, then it is a left-handed helix.

 

 

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this refers to the helical structure of double stranded DNA

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it tells us about the double helix model of DNA

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