Nucleotide arrangement in DNA can be seen by
A. X - ray crystallography
B. electron microsecope
C. ultracentrifuge
D. light microscope

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1 Answers

Correct Answer - A
Astbury by his X- ray diffraction studies suggested 3- D configuration for DNA molecules which was confirmed by Wilkins and Franklin in 1952 and then in 1953 Waston and Crick designed the model of DNA molecule.

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