As imaging tools continue to get more sophisticated, researchers have been able to actually watch biological processes as they are happening in live cells. Scientists have now visualized loops of DNA ...

Photos and letters show how James Watson and Francis Crick raced to uncover the double helix structure of DNA.

Scientists have discovered a new structure inside human cells: a never-before-seen twisted "knot" of DNA. Dubbed the "i-motif," this four-stranded knot looks totally different from the iconic double ...

In the double helix structure of DNA, thymine forms a base pair with adenine through two hydrogen bonds. This specific pairing is known as complementary base pairing and is essential for the stability ...

32 P-label is introduced by incoming dGT 32 P molecule. The arrows indicate the sites of enzymatic hydrolysis. The bases of the template DNA strand are designated as clear boxes, and the bases in the ...

DNA repair is critical for avoiding cancer and other diseases. A molecular machine called the MRN complex finds and signals double-strand breaks and initiates error-free repair by means of homologous ...

This monumental scientific achievement occurred within a context of intense international collaboration, rapid technical ...

A research team has solved the three-dimensional structure of a key protein that helps damaged cellular DNA repair itself. Investigators say that knowing the chemical structure of the protein will ...

James Watson, who co-discovered the structure of DNA has died at age 97. He was a scientific superstar until he made racist ...

His collaboration with biophysicist Francis Crick on the molecular key to all living organisms would make him one of the most ...

Often celebrated as a pioneer of genetics alongside Francis Crick, racist and sexist remarks tarnished his reputation in ...