What do a human, a rose, and a bacterium have in common? Each of these things — along with every other organism on Earth — contains the molecular instructions for life, called deoxyribonucleic acid or ...

In the late nineteenth century, a German biochemist found the nucleic acids, long-chain polymers of nucleotides, were made up of sugar, phosphoric acid, and several nitrogen-containing bases. Later it ...

(Nanowerk News) It may be the most famous structure in biology, but it wasn't until a few years ago that biophysicist Enzo di Fabrizio and his colleagues took the first direct images of the DNA double ...