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