alleryThe suppression of growth of lateral buds by auxins produced in the apical bud is known as which phenomenon?
AParthenocarpy
BBolting
CApical dominance
DAbscission
Answer & Solution
Correct answer: C. Apical dominance
1. Auxins are made in the apical (terminal) bud.
2. These auxins suppress the growth of the lateral buds below the tip.
3. This suppression of lateral buds by the apical bud is termed apical dominance.
4. Parthenocarpy is seedless fruit formation and bolting is gibberellin-induced shoot elongation, so they are ruled out.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 16 Plant and Animal Hormones "Physiological effects of auxins", p.238_
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