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Rosalind Franklin used x-ray diffraction to record how x-rays scatter when bounced off the surface of DNA molecules.
a) The DNA molecule was hydrophilic and extends upon exposure to water
b) The DNA helix was likely made of two strands
c) The DNA molecule was likely helical
d) The DNA molecule was uniform in width
e) All of the answers are correct

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Annder

Explanation:

The correct answer is (c) The DNA molecule was likely helical.

Rosalind Franklin's use of X-ray diffraction provided crucial evidence for the helical structure of DNA. Her images revealed a pattern of regularly spaced spots, suggesting a repeating structure. This pattern strongly indicated that DNA molecules were helical in shape. Additionally, Franklin's work contributed to the understanding that DNA consists of two strands, which supports option (b). However, the helical nature of the DNA molecule is the most directly supported conclusion from her X-ray diffraction data. Therefore, option (c) is the most appropriate choice.

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