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| Name | Chapter 1 - Sexual Reproduction in Flowering Plants (Question Answer) | Class 12 NCERT Biology |
| Video Uploader | Video From NCERT Hindi Tutor |
| Upload Date | This Video Uploaded At 21-09-2024 11:30:31 |
| Video Discription | In this video, we will study all the NCERT Exercises question answer of Chapter 1 - "Sexual Reproduction in Flowering Plants" from Unit 6 - "Reproduction" taken from Class 12 Biology NCERT Textbook. List of NCERT Exercises Questions answered in the video: 00:08 - 1. Name the parts of an angiosperm flower in which development of male and female gametophyte take place. 00:26 - 2. Differentiate between microsporogenesis and megasporogenesis. Which type of cell division occurs during these events? Name the structures formed at the end of these two events. 02:08 - 3. Arrange the following terms in the correct developmental sequence: Pollen grain, sporogenous tissue, microspore tetrad, pollen mother cell, male gametes. 03:03 - 4. With a neat, labelled diagram, describe the parts of a typical angiosperm ovule. 04:35 - 5. What is meant by monosporic development of female gametophyte? 05:04 - 6. With a neat diagram explain the 7-celled, 8-nucleate nature of the female gametophyte. 06:36 - 7. What are chasmogamous flowers? Can cross-pollination occur in cleistogamous flowers? Give reasons for your answer. 07:15 - 8. Mention two strategies evolved to prevent self-pollination in flowers. 07:48 - 9. What is self-incompatibility? Why does self-pollination not lead to seed formation in self-incompatible species? 08:24 - 10. What is bagging technique? How is it useful in a plant breeding programme? 08:58 - 11. What is triple fusion? Where and how does it take place? Name the nuclei involved in triple fusion. 09:58 - 12. Why do you think the zygote is dormant for sometime in a fertilised ovule? 10:21 - 13. Differentiate between: (a) hypocotyl and epicotyl; (b) coleoptile and coleorrhiza; (c) integument and testa; (d) perisperm and pericarp. 12:42 - 14. Why is apple called a false fruit? Which part(s) of the flower forms the fruit? 13:00 - 15. What is meant by emasculation? When and why does a plant breeder employ this technique? 13:38 - 16. If one can induce parthenocarpy through the application of growth substances, which fruits would you select to induce parthenocarpy and why? 14:05 - 17. Explain the role of tapetum in the formation of pollen-grain wall. 14:36 - 18. What is apomixis and what is its importance? Thank You for watching. #class12 #biology #ncert #questionanswer #ncertsolutions #class12biology #cbse |
| Category | Education |
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