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BIO NMDCAT Structure of DNA
nmdcat.online July 3, 2026

52. The phenomenon where a single nucleotide substitution within a coding exon changes a codon but still specifies the exact same amino acid is a

A. Missense mutation
B. Silent mutation
✓
C. Nonsense mutation
D. Frameshift mutation

📝 Explanation

Silent mutations take advantage of the redundancy of the genetic code, where multiple codons translate into the same amino acid.

📖 Additional Information

  • Missense mutation
  • Silent mutation
  • Nonsense mutation
  • Frameshift mutation

Silent mutations take advantage of the redundancy of the genetic code, where multiple codons translate into the same amino acid.

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