- A Genetic uniformity across successive generations
- B Genetic variation and vigor (hybrid vigor)
- C Reproduction of the pollinating insect species itself
- D Dormancy mechanisms that delay seed germination
Correct answer: B. Genetic variation and vigor (hybrid vigor)
Explanation: Cross-pollination between different plants promotes genetic variation and often results in hybrid vigor (heterosis) -- more robust offspring.
Concept context
Flower structure, pollination, double fertilization, and seed/fruit development — the highest-scoring Class 12 biology chapter in NEET.
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