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प्रश्न
Define Apomixis.
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उत्तर
Apomixis is a type of asexual reproduction that mimics sexual reproduction, i.e., the production of seeds without pollination and fertilization.
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संबंधित प्रश्न
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 blanks:
The male whorl, called the ________ produces ________.
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 blank:
The whorl ________is green that protects the flower until it opens.
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 | ||
The occurrence of two or more embryos in one ovule is called ______
What is pollen grain?
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.
