Question

Semiconservative replication of DNA was studied in E. coli with the help of ${}^{15}N$ by

• A. Watson and Crick
• B. Kornberg and Ochoa
• C. Meselson and Stahl
• D. Luria and Delbruck

Answer 1

Answer: (C)

The correct option is C Meselson and Stahl
The semiconservative nature of DNA was first demonstrated in E.coli by Mathew Messelson and Franklin Stahl.

Watson and Crick proposed the double helical structure of DNA.

So, the correct option is 'Meselson and Stahl'