3. Rosalind Franklin
Rosalind Franklin was an expert in the field of X-ray crystallography, and her research was the first to discover the dimensions of DNA strands as one molecule in two matching parts and opposite directions. However, her data was used by male scientists to make it appear like they discovered her first, and many people today agree that Rosalind should have been awarded a Nobel Prize along with her male colleagues. She passed in 1958, four years before it was awarded.
