Question:

In a population of plants, some were extremely tall and the remaining were extremely dwarf. No plants of the population showed intermediate height. The type of operation of natural selection in the above case is

Updated On: Apr 2, 2025
  • Balancing
  • Directional
  • Stabilizing
  • Disruptive
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The Correct Option is D

Solution and Explanation

Disruptive Selection favors extreme phenotypes (very tall and very dwarf plants) over intermediate traits, splitting the population into two distinct groups.

Other Types of Selection:

  • (A) Balancing: Maintains genetic diversity (e.g., heterozygote advantage).
  • (B) Directional: Favors one extreme phenotype (e.g., taller plants only).
  • (C) Stabilizing: Favors intermediate phenotypes (eliminates extremes).

Since, Both extremes coexisting without intermediates, the correct answer is disruptive selection (D).

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