MCQs Botany-29 Posted on April 3, 2025August 30, 2025Author agropublishers 0 1. Select the correct counterpart that has the same relation with the given word: Mountain : Hill :: Tree : __________? Forest Ecosystem Shrub Leaf 2. Which phytohormone is primarily responsible for inducing seed dormancy and inhibiting germination under unfavorable conditions? Ethylene Cytokinin Gibberellin Abscisic acid 3. Which phytohormone plays the most significant role in regulating plant height by promoting stem elongation? Abscisic acid Cytokinin Gibberellin Ethylene 4. Phytohormone _________ is involved in the induction of “triple response” (reduced elongation, thickened stem, exaggerated curvature) Ethylene Brassinosteroids Auxin Jasmonic acid 5. Based on morphological and molecular evidence, which of these dicotyledonous families is considered the most evolutionarily advanced? Scrophulariaceae Apiaceae (Umbelliferae) Asteraceae (Compositae) Acanthaceae 6. Which of the following describes a symbiotic association between the hyphae of a fungus and the roots of a plant? Actinomycetes Mycorrhizae Parasite Bryophyte 7. Which of the following is NOT typically represented on a climograph? Wind speed patterns Monthly precipitation totals Monthly temperature averages Seasonal climate trends 8. Photonasty is a ———- plant movement that occurs in response to light intensity None of these Directional Non-directional 9. _____________ play a crucial role in the nitrogen cycle by oxidizing ammonia (NH4+) to nitrite (NO2-) Azotobacter Nitrosomonas Rhizobium Nitrobacter 10. Manchester is known for ___________ due to its historical dominance in the textile industry during the Industrial Revolution Silk Textile Woollen Textile Polyester Textile Cotton Textile Loading …