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

39. The occurrence of a mutation where a single nucleotide is inserted or deleted within the coding region of a gene leads to a

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

📝 Explanation

Inserting or deleting a base shifts the triplet reading frame downstream, completely altering the remaining amino acid sequence.

📖 Additional Information

  • Missense mutation
  • Frameshift mutation
  • Silent mutation
  • Transversion mutation

Inserting or deleting a base shifts the triplet reading frame downstream, completely altering the remaining amino acid sequence.

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