Biology Evolution KMU 2024
PMDC Verified Question 3 of 47
According to Lamarckism, the basis of evolution is:
A
Inheritance of acquired characteristics
B
Mutation
C
Natural selection
D
Survival of the fittest
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Inheritance of acquired characteristics
Concept:

Lamarck's theory of evolution is fundamentally driven by an organism's internal need to adapt to its environment during its lifetime.

Solution:

  • Lamarckism revolves around two core principles: "Use and Disuse" and the Inheritance of Acquired Characteristics.
  • He theorized that if an organism physically changed its body (e.g., stretching a neck to reach high leaves), this somatic change would fundamentally alter the "hereditary material" passed to its offspring.


Why other options are incorrect:

  • Natural selection / Survival of the fittest: The basis of Darwinism.
  • Mutation: The basis of modern genetics (Neo-Darwinism), unknown in Lamarck's time.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

Previous Question All Evolution MCQs Next Question

Want to solve full-length papers under timed exam conditions?

Practice with zero-scroll lockdown sprints, dynamic latency zone timers, live peer selection telemetry, and the automated Amber mistake recovery loop.

Enter Arena Sprint iOS App Android App