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MHT CET Medical202623 April 2026Evening ShiftBiologyEvolutionActual

Reproductive isolation occurs due to all of the following EXCEPT

Options

  1. AChange in genetic material
  2. BStructure of genital organs
  3. CChange in gene pool
  4. DBarriers like glacier

Correct answer

D. Barriers like glacier

Step-by-step solution

Reproductive isolation refers to the intrinsic biological mechanisms (pre-zygotic and post-zygotic barriers) that prevent two populations from interbreeding and producing fertile offspring. These mechanisms include changes in genetic material, structural differences in genital organs (mechanical isolation), and changes in the gene pool that lead to behavioral or temporal isolation. Barriers such as glaciers, mountains, or rivers cause geographical isolation, which is an extrinsic physical barrier. While geographica

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