Question

Which of the following first suggest the conservative model of DNA replication?

• A. Cairns
• B. Meselson and Stahl
• C. Watson and Crick
• D. Taylor

Answer 1

Answer: (B)

Mathew Meselsen and Franklin Stahl $(1957)$ gave semi-conservative model for DNA replication. J. Cairns in $1963$ used the technique of autoradiography to show that DNA replication is semiconservative. Watson and Crick gave double helical structure of DNA. Taylor et.al., $(1957)$ demonstrated that DNA replication was semiconservative.