Using x‑ray crystallography, rosalind franklin was able to produce x‑ray diffraction images of dna that were clearer than any previously produced images. what did the images show regarding the structure of dna?

The correct answer will be the image showed two strands are wrapped in double helical form.

Explanation:

Rosalind Franklin is known for her work on the X-ray crystallography image of DNA. The x-ray image is known as Photo 51 which was taken on May 1952 by Rosalind Franklin and her student Raymond Gosling at King's College of London.

The image showed the "DNA as a wrapped structure made of two strands in helical fashion like a twisted ladder" which was used later by Francis Crick and James Watson who were nominated Nobel prize for their work on the structure of DNA.  

the answer is b.) hydrogen bonds between bases.

if you know your abc's you should be able to get your answer or just use google