MCQs Botany-6

1. Gymnosperms have been originated about __________________million years ago

2. _________are living organisms that exist solely at the organelle level of organization

3. ___________ are specialized resting stages formed by some cyanobacteria

4. ___________ are non-motile spores produced by some algae and protists

5. ___________ deals with the direct manipulation of an organism’s genetic makeup to introduce new traits or modify existing ones

6. ___________ organisms prefer moderate temperature

7. ___________ are spores produced by a single parent cell during asexual reproduction

8. Organisms that can tolerate high temperature (45-65 °C) are called _____________

9. ___________ phenomenon describes the light production by living organisms

10. Bristlecone Pines is known for its longevity, with record life of ________ years

11. If leaf lamina is segmented into more than one plane then the leaf is known as_____________

12. ___________ is a type of plastids associated with the storage of oils and fats in the plants

13. _______ is the fusion of two non-flagellated gametes

14. In angiosperms, sporophyte generation is ________________

15. Concerns surrounding genetically modified organisms (GMOs) primarily focus on _____________

16. ___________ organisms that can tolerate high salts in the environment

17. Photosynthetic pigmented organelles within plastids are called ___________-

18. Vascular plants, with specialized tissues for transporting water and nutrients, appeared during __________ million years ago

19. _________ are photosynthetic pigments that absorb light energy and transfer it to a reaction center of “chlorophyll a”.

20. ___________ are thick-walled spores, resistant to extremes of environments