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