Selected MCQ

Current Question
Genetic drift is strongest in populations that are:
  • A. Infinitely large
  • B. Very small
  • C. Perfectly mixed and enormous
  • D. Under no mutation
Correct Answer: B
Explanation:
Random allele-frequency changes are amplified when sample sizes are small.
Related Question 1
Which force is strongest?
  • A. Gravitational
  • B. Electromagnetic
  • C. Weak
  • D. Strong
Correct Answer: D
Explanation:
Strong force binds nucleons.
Related Question 2
Which acid is strongest in water?
  • A. HF
  • B. HClO₄
  • C. H₂CO₃
  • D. CH₃COOH
Correct Answer: B
Explanation:
Perchloric acid fully dissociates.
Related Question 3
Which species is strongest nucleophile?
  • A. H₂O
  • B. NH₃
  • C. OH⁻
  • D. Cl⁻
Correct Answer: C
Explanation:
OH⁻ has high electron density.
Related Question 4
Which compound is strongest base?
  • A. NH₃
  • B. OH⁻
  • C. CH₃COO⁻
  • D. Cl⁻
Correct Answer: B
Explanation:
Hydroxide is strong base in water.
Related Question 5
Which bond is strongest?
  • A. Ionic
  • B. Hydrogen
  • C. Covalent
  • D. Van der Waals
Correct Answer: C
Explanation:
Covalent bonds involve electron sharing.