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