Question: 129. Match List I with List II
| List I | List II |
|---|---|
| A. Frederick Griffith | I. Genetic code |
| B. Francois Jacob & Jacque Monod | II. Semi-conservative mode of DNA replication |
| C. Har Gobind Khorana | III. Transformation |
| D. Meselson & Stahl | IV. Lac operon |
Choose the correct answer from the options given below:
(1) A-III, B-II, C-I, D-IV
(2) A-III, B-IV, C-I, D-II
(3) A-II, B-III, C-IV, D-I
(4) A-IV, B-I, C-II, D-III
Answer: Option (2)
Explanation:
Frederick Griffith is known for his experiment on transformation,
where he demonstrated the transfer of genetic material between bacteria, hence A is matched with III.
Francois Jacob and Jacque Monod proposed the Lac operon model,
explaining gene regulation in prokaryotes, so B is matched with IV.
Har Gobind Khorana played a key role in deciphering the genetic code by determining the nucleotide sequences corresponding to amino acids, therefore C is matched with I.
Meselson and Stahl experimentally proved the semi-conservative mode of DNA replication using isotopic labeling, hence D is matched with II.
Thus, the correct matching is A-III, B-IV, C-I, D-II.