A-DNA

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English[edit]

English Wikipedia has an article on:
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Etymology[edit]

A +‎ DNA. Coined by Rosalind Franklin, for the first of two forms discovered during her X-ray crystallography experiments on DNA.

Noun[edit]

A-DNA (countable and uncountable, plural A-DNAs)

  1. (uncountable) A configuration of DNA in cells, right-hand twisting double helix with a small size difference between major groove and minor groove, wider and more squashed twist than B-DNA; found during transcription and replication.
  2. (countable) A DNA helix in such a configuration.

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