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 called a ...

More complex and not answered at the time was the question of why there were two forms. What was the nature of the less-hydrated fibers that produced the better-oriented and crystalline A-form, which ...

A few years back, the 50th anniversary of the discovery of the structure of the DNA double helix by biologists James D. Watson and Francis H. C. Crick was grandly celebrated. In fact, it's a double ...

James Dewey Watson, whose co-discovery of the twisted-ladder structure of DNA in 1953 helped launch a revolution in biology and medicine, died Thursday at age 97. He died in hospice care after a brief ...

DNA is more than just the secret of life--it is also a versatile component for making nanoscopic structures and devices The year 2003 witnessed the 50th anniversary of the discovery of DNAs ...