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प्रश्न
Fill in the blank:
The _________ collect the pollen grains.
उत्तर
The stigma collect the pollen grains.
APPEARS IN
संबंधित प्रश्न
Explain the different ways apomictic seeds can develop, Give an example of each.
Define the Polyembryony.
State what is apomixis. Write its significance. How can it be commercially used?
Once the pollen reaches the stigma, the pollen tube traverses down the ________ to the ovary where fertilization occurs.
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 | ||
Give an account of polyembryony.
The occurrence of two or more embryos in one ovule is called ______
In case of polyembryony, if an embryo develops from the synergid and another from the nucellus which is haploid and which is diploid?
Explain following term:
Polyembryony
