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