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प्रश्न
Once the pollen reaches the stigma, the pollen tube traverses down the ________ to the ovary where fertilization occurs.
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उत्तर
Once the pollen reaches the stigma, the pollen tube traverses down the style to the ovary where fertilization occurs.
Explanation:
Once the pollen reaches the stigma, it grows a tube called the pollen tube, which travels down the style. The style is a narrow, tube-like structure that connects the stigma to the ovary. The pollen tube continues down the style until it reaches the ovary, where it releases the sperm cells to fertilize the ovule. This fertilization process leads to the development of seeds.
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संबंधित प्रश्न
State what is apomixis. Comment on its significance. How can it be commercially used?
Why are some seeds referred to as apomictic seeds?
Explain the different ways apomictic seeds can develop, Give an example of each.
Mention one advantage of apomictic seeds to farmers.
How polyembryony can be commercially exploited?
Fill in the blank:
________takes place when one male gamete and the egg fuse together. The fertilized egg grows into a seed from which the new plants can grow.
Fill in the blanks:
The ______ are coloured to attract the insects that carry the pollen. Some flowers also produce ______ or ______ that attracts insects.
Fill in the blank:
The whorl ________is green that protects the flower until it opens.
What is pollen grain?
Give reason: Nucellar polyembryony is significant in horticulture.
