A-DNA
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English
Etymology
A + DNA. Coined by Rosalind Franklin, for the first of two forms discovered during her X-ray crystallography experiments on DNA.
Noun
A-DNA (countable and uncountable, plural A-DNAs)
- (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.
- (countable) A DNA helix in such a configuration.