Reproductive Isolating Mechanisms (RIMs): Biological barriers (pre-zygotic and post-zygotic) that prevent individuals of different species from producing viable, fertile offspring.
Primary Function: In evolutionary biology and plant speciation, the fundamental role of reproductive barriers is preventing interspecific gene flow, thereby maintaining taxonomic boundaries and genetic distinctiveness. (Correct answer: Option 2)
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Official PYQ Papers
Previous Year Papers ofPlant Genetic Resources
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