Question

How many codons code for amino acids and how many are unable to do so?

Answer 1

Codons:

1. A codon will specifically code for a specific amino acid in every organism, i.e. it is universal.
2. Degenerate codons are also there which will code more than one amino acid.
3. We will see that 20 amino acids will be coded by 64 codons.
4. Out of these 64 codons, 61 will code for different amino acids.
5. Rest three are the stop codon or the termination codon (UAA, UAG, UGA).
6. These stop codons are unable to code.