The genetic code is described as degenerate because

  1. codons overlap
  2. some codons have four bases
  3. it is the same in all organisms
  4. most amino acids are coded for by more than one codon
Answer

D) most amino acids are coded for by more than one codon

Several codons per amino acid. AS & A Level Biology · Topic 6 Nucleic Acids and Protein Synthesis · 6.2 Protein synthesis

Biology MCQ · More A Level Biology: Nucleic acids and protein synthesis MCQs · Practise