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