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प्रश्न
Fill in the blank:
The ______ is the base of the flower to which other floral parts are attached.
रिकाम्या जागा भरा
उत्तर
The thalamus is the base of the flower to which other floral parts are attached.
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संबंधित प्रश्न
Fill in the blank:
The _________ collect the pollen grains.
Fill in the blank:
The ________contains the egg or ovum.
Once the pollen reaches the stigma, the pollen tube traverses down the ________ to the ovary where fertilization occurs.
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 | ||
What is adventive polyembryony?
Give an account of polyembryony.
The polyembryony commonly occurs in ______.
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.
Give reason: Nucellar polyembryony is significant in horticulture.
Explain following term:
Polyembryony
