Match List - I with List - II.
| List - I | List - II |
|---|---|
| A. The triplet nature of genetic code | I. George Gamow |
| B. The technique of DNA fingerprinting | II. Francis Crick |
| C. Lac operon | III. Alec Jeffreys |
| D. Central Dogma | IV. Jacob and Monod |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → A-I, B-III, C-IV, D-II
(A) The triplet nature of genetic code — this matches (I) George Gamow. Gamow argued that 20 amino acids need a code of three bases (43 = 64 combinations).
(B) The technique of DNA fingerprinting — this matches (III) Alec Jeffreys. He developed DNA fingerprinting using a VNTR probe.
(C) Lac operon — this matches (IV) Jacob and Monod. They first described the lac operon of E. coli.
(D) Central Dogma — this matches (II) Francis Crick. Crick proposed the flow of information DNA → RNA → protein.