1.

Nucleotide arrangement in DNA can be seen byA. X - ray crystallographyB. electron microsecopeC. ultracentrifugeD. light microscope

Answer» 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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