A) Watson and Crick
B) Kornberg and Ochoa
C) Meselson and Stahl
D) Luria and Delbruck
Correct Answer: B
Solution :
Mathew Messelson and Franklin Stahl (1957-58) gave/prooved semi-conservative mode of DNA replication for the fist time in bacterium E coy/with help of\[^{15}Na\]heavy isotope of nitrogen as postulated previously by Watson and Crick. Kornberg and Ochoa carried out the first in vitro synthesis of DNA with template and RNA respectively.
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