nmdcat.online
BIO NMDCAT Ribonucleic acid (RNA)
nmdcat.online July 3, 2026

56. The phenomenon where a single point mutation alters a codon on mRNA to produce a premature stop codon is known as a

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

📝 Explanation

A nonsense mutation converts an amino acid-specifying codon into a termination codon (UAA, UAG, or UGA), shortening the final protein.

📖 Additional Information

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

A nonsense mutation converts an amino acid-specifying codon into a termination codon (UAA, UAG, or UGA), shortening the final protein.

🔗 Share This Question

Facebook Twitter LinkedIn WhatsApp

🧭 Navigate Questions

Previous Question

55. The chemical substance that inhibits eukaryotic transcription by binding directly to RNA Polymerase II is

Next Question

57. The process of transcription termination in prokaryotes can be mediated by a specific protein factor called

Back to All Questions

🔗 Related MCQs

An increase in the incidence of ectopic pregnancies within a population can often be epidemiologically correlated with a prior increase in the prevalence of which sexually transmitted disease?
July 16, 2026
In the life cycle of Herpes Simplex Virus 2 (HSV-2), the virus travels along nerve fibers to reach the sensory ganglia. The cellular mechanism responsible for this retrograde transport utilizes:
July 16, 2026
A defining characteristic of the lesions associated with the secondary stage of syphilis is that they:
July 16, 2026
The causative agent of genital herpes, HSV-2, is enveloped. The biological significance of this viral envelope in the context of transmission is that it makes the virus:
July 16, 2026
The structural basis for the severe cardiovascular complications seen in tertiary syphilis, such as aortic aneurysms, is the chronic inflammation and destruction of:
July 16, 2026

Categories

View all →