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Q. In 1952, an unambiguous established work in the laboratory of Alexander Todd led to the discovery of _____________
A. Chemical nature of DNA
B. X-ray diffraction structure of DNA
C. 3’-5’ phosphodiester linkage regularly links the nucleotides of DNA
D. Nucleic acid strands are held together by hydrogen bonds
Answer: 3’-5’ phosphodiester linkage regularly links the nucleotides of DNA