MHT CET Medical202623 April 2026Evening ShiftBiologyEvolutionActual
Reproductive isolation occurs due to all of the following EXCEPT
Options
- AChange in genetic material
- BStructure of genital organs
- CChange in gene pool
- 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