Re~Post: 'Quadruple helix' DNA seen in human cells
BBC News - 1/20/13, Johnathan Amos

A representation of the four-stranded structure (L) with fluorescent markers revealing its presence inside cells (R)
Cambridge University scientists say they have seen four-stranded DNA at work in human cells for the first time.
The famous "molecule of life", which carries our genetic code, is more familiar to us as a double helix.
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