Rosalind Franklin
Rosalind Franklin was a chemist and X-ray crystallographer whose work was central to the understanding of the molecular structure of DNA (deoxyribonucleic acid).
Take a good look at the image below. When you are ready, hit 'Start'. The jigsaw pieces will appear and timer will begin. Assemble the puzzle by fitting the pieces together to complete the image. When you have completed the puzzle, you're done. Let's see how fast you can assemble it!
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