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प्रश्न
Explain following term:
Polyembryony
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उत्तर
It is the development of more than one embryo inside the seed, which consequently results in the emergence of multiple seedlings. Polyembryony may be true or false depending upon whether many embryos arise in the same embryo sac in the same ovule.
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संबंधित प्रश्न
Mention one advantage of apomictic seeds to farmers.
State what is apomixis. Write its significance. How can it be commercially used?
How polyembryony can be commercially exploited?
Fill in the blanks:
The male whorl, called the ________ produces ________.
Fill in the blank:
The pollen grains represent the ________.
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.
Match the column.
| Column - I (Structure before seed formation) |
Column - II (Structure after seed formation) |
||
| A. | Funiculus | I. | Hilum |
| B. | Scar of ovule | II. | Tegmen |
| C. | Zygote | III. | Testa |
| D. | Inner integument | IV. | Stalk of seed |
| V. | Embryo | ||
Apomixis is a type of reproduction that results is the development of a/an ______.
What is polyembryony and how can it be commercially exploited?
