MCQs Botany-26 Posted on March 4, 2025August 30, 2025Author agropublishers 0 1. Which group of plants produces seeds but does not have flowers or fruits? Gymnosperms Pteridophytes Mosses Bryophytes 2. Taxonomically, mosses are included in which group of plants? Bryophytes None of these Gymnosperms Pteridophytes 3. Photonasty is a type of nastic movement that involves the opening or closing of plant organs in response to———– Mechanical stimuli Temperature fluctuations Gravitational forces Light intensity 4. Terpenoids are a major component of ———- plants and are used in their chemotaxonomy Tea Coffee Citrus Rose 5. The plant hormone ——— is primarily responsible for phototropism Ethylene Gibberellin Cytokinin Auxin 6. —- is mong the techniques used to study gene expression in plants RT-PCR (Reverse Transcription PCR) Microscopy ELISA (Enzyme-Linked Immunosorbent Assay) Serology 7. What is the role of statoliths in gravitropism? To perceive gravitational force To perceive mechanical stimuli To perceive light intensity To perceive water availability 8. The Commelinaceae family is commonly known as the ——— Aloe family Orchid family Bromeliad family Spiderwort family 9. ——- is a cultural method for plant disease control Use of resistant varieties Crop rotation Application of fungicides Biological control 10. Lenticels are involved in———– Gas exchange Mechanical support Water absorption Food storage Loading …
