Match List I with List II.
| List I (Name of Scientists) | List II (Discovery) |
|---|---|
| A. Alec Jeffreys | I. Lac Operon |
| B. Francois Jacob and Jacques Monod | II. Deciphering of genetic code |
| C. Marshall Nirenberg | III. Semiconservative replication of DNA |
| D. Meselson and Stahl | IV. DNA Fingerprinting |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → A-IV, B-I, C-II, D-III
(A) Alec Jeffreys — this matches (IV) DNA Fingerprinting. He developed the technique using a satellite DNA (VNTR) as a probe.
(B) Francois Jacob and Jacques Monod — this matches (I) Lac Operon. They were the first to explain a transcriptionally regulated system, the lac operon of E. coli.
(C) Marshall Nirenberg — this matches (II) Deciphering of genetic code. His cell-free system for protein synthesis helped to decipher the code.
(D) Meselson and Stahl — this matches (III) Semiconservative replication of DNA. Growing E. coli on 15N and then 14N, they showed that each new DNA keeps one old strand.