Science news articles about 'double helical structure'

... in one tissue and low levels in another tissue." Since the discovery of DNA's double helical structure more than a half century ago, scientists have focused much of their attention on understanding ...

... adenine, thymine, cytosine and guanine—which make up the ladder rungs of the DNA's double helical structure. Most of these require snipping DNA into hundreds of thousands of short fragments, unzipping ...

(PhysOrg.com) -- With its unique double-helical structure, DNA has the ability to be used as a programmable building material to construct designer nanoscale architectures. Complex DNA architectures ...