"We wish to suggest a structure for the salt of deoxyribose nucleic acid (D.N.A.). This structure has novel features which are of considerable biological interest" - James Watson and Francis Crick, Nature, 25 April 1953

From the architecture of a cell's nucleus, through the double helix, right down to the shape of the bases, the structure of DNA has many levels

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Live wire
By conducting charge like an electric cable, DNA may deflect damage away from all-important genes. Graham Lawton explains
(15/03/2003)

Running repair
It takes round-the-clock maintenance just to keep your DNA in safe working order. And it 's a service you really don 't want to do without, says Claire Ainsworth
(15/03/2003)

Master code
DNA gives us the list of materials that make us human. Now we need to learn how to read the instructions that tell us how they are put together. Helen Phillips takes the first steps
(15/03/2003)

Location location location
Who would have thought that achromosome 's position in the nucleus would be so crucial to the functioning of its genes? Bob Holmes reports
(15/03/2003)

The robot within
The tools to create an army of replicating nanobots may lie in your own cells, says Philip Ball
(15/03/2003)

DNA weblinks
More background to the DNA anniversary
(09/04/2003)

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Human gene on/off switches to be mapped
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Colour vision ended human pheromone use
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'Blessed tree' extracts linked to DNA damage
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DNA theft to be criminal offence in UK
The new law is part of a government plan to embrace the medical potential of genetic technology, while protecting individual rights
(24/06/2003)

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Gene testing is easy, it 's the next bit that 's hard
Interpreting genetic information reliably is proving far trickier than most experts imagined
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By their bar codes shall ye know them
Hiding a bar code in DNA could prove very valuable for identifying genetically modified plants
(15/02/2003)

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