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