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