A substitution mutation may have no effect on the protein because

  1. the code is overlapping
  2. tRNA ignores it
  3. mRNA is not translated
  4. the genetic code is degenerate
Answer

D) the genetic code is degenerate

The new codon may code for the same 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