MCQs Botany-6 Posted on 2024-03-092024-11-08Author admin 0 MCQs Botany-6 Multiple Choice Questions (MCQs) for Test Preparation Botany, Plant Sciences 1. Vascular plants, with specialized tissues for transporting water and nutrients, appeared during __________ million years ago 415-355 66 145-65 445-415 2. ___________ deals with the direct manipulation of an organism’s genetic makeup to introduce new traits or modify existing ones Biotechnology None of these Genetic Engineering Tissue culture 3. ___________ is a type of plastids associated with the storage of oils and fats in the plants Elaioplast Aleuroplast Amyloplasts Leucoplasts 4. ___________ organisms that can tolerate high salts in the environment Mesophillic Halophillic Thermophilic Non-thermic 5. _______ is the fusion of two non-flagellated gametes Budding Parthenogenesis Heterogamy Conjugation 6. Photosynthetic pigmented organelles within plastids are called ___________- Leucoplasts Chloroplasts Chromoplasts Amyloplasts 7. ___________ are non-motile spores produced by some algae and protists Resting Spores Akinetes Monospore Aplanospores 8. _________are living organisms that exist solely at the organelle level of organization Bryophytes Lichens Pteridophytes Bacteria 9. Organisms that can tolerate high temperature (45-65 °C) are called _____________ Non-thermic Thermophilic Mesophillic Halophillic 10. In angiosperms, sporophyte generation is ________________ Diploid Haploid Polyploid Triploid 11. If leaf lamina is segmented into more than one plane then the leaf is known as_____________ Compound leaf Bract leaf Simple leaf Cauline leaf 12. ___________ are spores produced by a single parent cell during asexual reproduction Akinetes Resting Spores Monospore Aplanospores 13. ___________ are specialized resting stages formed by some cyanobacteria Aplanospores Zygospores Monospore Akinetes 14. ___________ phenomenon describes the light production by living organisms Fluorescence Phosphorescence Bioluminescence Photophore 15. Gymnosperms have been originated about __________________million years ago 360 300 319 370 16. Concerns surrounding genetically modified organisms (GMOs) primarily focus on _____________ Labor issues in agriculture Impact on the human health and environment Cost of production Pesticide pollution 17. _________ are photosynthetic pigments that absorb light energy and transfer it to a reaction center of “chlorophyll a”. Accessory pigments Water soluble pigments Tertiary pigments Primary pigments 18. Bristlecone Pines is known for its longevity, with record life of ________ years around 4,500 None of these around 7,000 around 3,000 19. ___________ are thick-walled spores, resistant to extremes of environments Aplanospores Akinetes Resting Spores Monospore 20. ___________ organisms prefer moderate temperature Thermophilic Halophillic Mesophillic Non-thermic Loading …