What is the polarity of the two chains in the Double-helix structure of DNA?

What is the polarity of the two chains in the Double-helix structure of DNA?
  1. Parallel
  2. Perpendicular
  3. Anti-parallel
  4. Orthogonal

Solution

In the Double-helix structure of DNA, the two chains have anti-parallel polarity, meaning if one chain has the polarity 5' to 3', the other has 3' to 5'.

Asked in: NCERT

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