As early as 1943 Oswald Avery proved what had been suspected: that DNA, a nucleic acid ... in such a way to form a double helix, like a spiral staircase. This structure, announced in their ...

April 25 has been a date marked by pivotal moments in world history, shaping nations and influencing global events across ...

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 ...

The double helix is a description of the molecular shape of a double-stranded DNA molecule. In 1953, Francis Crick and James Watson first described the molecular structure of DNA, which they ...

Chances are you've seen an illustration of DNA's double-helix structure and even pictures of the chromosomes that make up the human genome. But where and how does the famous double helix fit into ...