Selected MCQ

Current Question
Which mutation is least likely to alter protein sequence?
  • A. Missense mutation
  • B. Nonsense mutation
  • C. Silent mutation
  • D. Frameshift mutation
Correct Answer: C
Explanation:
Due to genetic code degeneracy, a silent change can preserve the same amino acid.
Related Question 1
Which blood protein transports iron?
  • A. Hemoglobin
  • B. Albumin
  • C. Transferrin
  • D. Fibrin
Correct Answer: C
Explanation:
Transferrin carries iron.
Related Question 2
Which metal is least reactive?
  • A. Sodium
  • B. Potassium
  • C. Gold
  • D. Calcium
Correct Answer: C
Explanation:
Gold is inert.
Related Question 3
Which organelle modifies proteins?
  • A. Ribosome
  • B. Golgi
  • C. Lysosome
  • D. Nucleus
Correct Answer: B
Explanation:
Golgi processes and packages proteins.
Related Question 4
Which structure is site of protein synthesis?
  • A. Nucleus
  • B. Ribosome
  • C. Lysosome
  • D. Golgi
Correct Answer: B
Explanation:
Ribosomes assemble amino acids.
Related Question 5
Which ecosystem has least rainfall?
  • A. Forest
  • B. Desert
  • C. Grassland
  • D. Tundra
Correct Answer: B
Explanation:
Deserts receive minimal precipitation.