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प्रश्न
Answer the following question.
When a seed of orange is squeezed, many embryos, instead of one are observed. Explain how it is possible.
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उत्तर
It is due to polyembryony.
The occurrence of more than one embryos in a seed is called as POLYEMBRYONY.
In orange, the nucellar cells, synergid, or integument cells develop into a number of embryos of different sizes.
eg: Citrus.
- Sometimes the formation of more than one egg in an embryo sac can lead to polyembryony.
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संबंधित प्रश्न
State what is apomixis. Comment on its significance. How can it be commercially used?
Explain any three advantages that seeds offer to angiosperms.
Why are some seeds referred to as apomictic seeds?
State what is apomixis. Write its significance. How can it be commercially used?
The ______ collect the pollen grains.
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.
The occurrence of two or more embryos in one ovule is called ______
The plant part which consists of two generations, one within the other-
- Pollen grains inside the anther.
- Germinated pollen grain with two male gametes.
- Seed inside the fruit.
- Embryo sac inside the ovule
Choose the correct option.
Explain following term:
Polyembryony
