Who conducted the x-ray diffraction studies that were key to the discovery of the structure of dna?

The person who conducted the x-ray diffraction studies that were key to the discovery of the structure of DNA was Rosalind Franklin.He was actually x-ray crystallographer and an English chemist. He was born on 25th of July in the year 1920 and died on 16th of April in the year 1958. His contribution towards understanding the structure of DNA is still remembered.

Divide each number then subtract