How Was Dna Discovered

DNA was discovered in 1869 by Swiss researcher Friedrich Miescher, who was originally trying to study the composition of lymphoid cells (white blood cells). Instead, he isolated a new molecule he called nuclein (DNA with associated proteins) from a cell nucleus.

Who discovered the double helix shape and structure of DNA?

In 1953, Francis Crick and James Watson first described the molecular structure of DNA, which they called a “double helix,” in the journal Nature. For this breakthrough discovery, Watson, Crick, and their colleague Maurice Wilkins won a Nobel Prize in Physiology, or Medicine, in 1962.

How Rosalind Franklin discovered the helical structure of DNA?

Rosalind Franklin, a chemical physicist (1920-1958), used X-Ray diffraction to determine the structure of DNA. In 1953 she described the DNA has a helical structure with a period of 34 A and a radius of 10 A. … Franklin’s X-Ray diffraction photo, which should be made available to them in original size.