AP BIOLOGY

Detailed explanation-1: -“All you can say is that you were very lucky. You were born at the right time and your parents gave you books when you were young.” James Watson, who won a Nobel Prize for co-discovering the structure of DNA, holds a model of the molecule.

Detailed explanation-2: -The Nobel Prize in Physiology or Medicine in 1962 was awarded to James Watson, Francis Crick and Maurice Wilkins for their discovery of the molecular structure of DNA, which helped solve one of the most important of all biological riddles.

Detailed explanation-3: -Pauling proposed a triple helix structure with the bases on the outside, but James Watson and Francis Crick ultimately disproved his idea with their famous double helix model. They had succeeded largely because they had access to X-ray crystallography data from scientists at King’s College in London.