I keep getting “Genetic code” questions wrong in Molecular Basis of Inheritance. What's the trap?
thinking one codon can code for several amino acids.
The usual trap: thinking one codon can code for several amino acids. How to avoid it: 64 codons for 20 amino acids -> many codons per amino acid, never the reverse. Go back to the definition — a triplet, degenerate, non-overlapping and near-universal code with AUG as start and three stop codons.
Key point
Genetic code
Common mistake
thinking one codon can code for several amino acids.
Memory tip
64 codons for 20 amino acids -> many codons per amino acid, never the reverse.
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