Question

Who discovered the structure of DNA?

Answer 1

James Watson and Francis Crick described structure of DNA based on an X ray diffraction image of DNA molecule taken by English chemist, Rosalind Franklin.

Explanation:

They described the structure of the DNA in the 1950s as a double helix. Erwin Chargaff's findings clearly proposed that DNA molecule has paired bases, but double helical structure of DNA was an original concept of Watson and Crick.

James Watson is an American biologist while Francis Crick is an English biophysicist.