Final answer:
Rosalind Franklin's expertise was in X-ray crystallography, enabling key contributions to DNA's double helix structure.
Explanation:
Rosalind Franklin's expertise was in X-ray crystallography. She utilized this technique to obtain crucial images of DNA's double helix structure, contributing significantly to the understanding of molecular biology.
Learn more about Rosalind Franklin's expertise here:
https://brainly.com/question/16074068
