(B) In $1953$,James Watson and Francis Crick proposed the double helix model of $DNA$ based on $X$-ray diffraction data produced by Rosalind Franklin

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(B) In $1953$,James Watson and Francis Crick proposed the double helix model of $DNA$ based on $X$-ray diffraction data produced by Rosalind Franklin and Maurice Wilkins. This model explained the structure of $DNA$ and how it could store and replicate genetic information.