Question

Isolation and purification of specific DNA segment from a living organism was achieved by

• A. Crick
• B. Nirenberg
• C. Khorana
• D. Beckwith and his colleagues

Answer 1

The correct option is B Nirenberg

Nirenberg discovered the three sequences of three bases in DNA. Watson & Crick discovered DNA in 1950, Khorana was involved in the discovery of genetic codes & their functions in protein synthesis, Beckwith & his colleagues isolated a gene from the chromosome of a living organism.

So, the correct answer is "Nirenberg".