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Self-incompatibility blocks self-pollen by
AProducing only unisexual flowers
BInhibiting germination or tube growth
CPlacing anther and stigma far apart
DShedding pollen before stigma matures
Answer & Solution
Correct answer: B. Inhibiting germination or tube growth
Self-incompatibility is a genetic mechanism that stops self-pollen from germinating or growing a tube in the pistil.
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