'Quadruple helix' DNA seen in human cells

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BBC News - 1/20/13, Johnathan Amos

A representation of the four-stranded structure (L) and fluorescent markers reveal its presence inside cells (R)
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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