Question: 163. Who proposed that the genetic code for amino acids should be made up of three nucleotides?
(1) George Gamow
(2) Francis Crick
(3) Jacque Monod
(4) Franklin Stahl
Answer: Option (1)
Explanation: George Gamow proposed the concept of a triplet code, suggesting that three nucleotides form one codon that specifies one amino acid.
This idea helped explain how four nitrogen bases could code for 20 amino acids through combinations of triplets.