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NEET 2025, Biology Q17: Gene Regulation and Genetic Code

NEET2025Biology
Q.

Who proposed that the genetic code for amino acids should be made up of three nucleotides?

  1. A

    Franklin Stahl

  2. B

    George Gamow

  3. C

    Francis Crick

  4. D

    Jacque Monod

Solution

Physicist George Gamow proposed on combinatorial grounds that since there are 20 amino acids but only 4 bases, the code had to be at least a triplet (). Hence he predicted the genetic code would consist of three nucleotides per amino acid.

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