Question

how was DNA discovered and by whom?

Answer 1

The identification of DNA and its structure is one of the most important discoveries of the twentieth century. The key individuals responsible for the discovery of the double helix structure of DNA were Francis Crick and James Watson. However, were it not for Rosalind Franklin, Linus Pauling and Maurice Wilkins, the two men would likely not have made the discovery following the crucial events that preceded their work.

Answer 2

The history of the discovery of DNA is a complicated one. I recommend you to check this website, that has a detailed timeline with all the important events that took place before the discovery of DNA and its function. http://goo.gl/XWqW4 http://goo.gl/n5c9S