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In a random mating population in equilibrium, which one of the following brings about a change in gene frequency in a non-directional manner ?

NEET UG 2003 — Zoology Evolution

2003mcqmedium

In a random mating population in equilibrium, which one of the following brings about a change in gene frequency in a non-directional manner ?

Official previous-year question

Held on 30 Apr 2003 · Verified 9 Jul 2026.

Options

  1. A

    mutations

  2. B

    random drift

  3. C

    selection

  4. D

    migration

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