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प्रश्न
Long Answer Question:
Draw a labeled diagram of the L.S. of anatropous ovule and list the components of the embryo sac and mention their fate after fertilization.
उत्तर
1. Structure of anatropous ovule:
2. List the components of embryo sac and mention their fate after fertilization:
| Components of the embryo sac | Fate after fertilization |
| Ovule | Seed |
| Egg | Embryo |
| Nucellus | Perisperm |
| Secondary nucleus | Endosperm |
| Outer integument | Testa (outer seed coat) |
| Inner integument | Tegmen (inner seed coat) |
| Micropyle | An opening in the seed (i.e. micropyle) |
| Synergids | Degenerate |
| Antipodals | Degenerate |
APPEARS IN
संबंधित प्रश्न
Where and how does triple fusion take place?
(a) Explain the events after pollination leading to the formation of a seed in angiosperms.
(b) Mention the ploidy levels of the cells of different parts of an albuminous seed.
During double fertilization second male gamete fuses with ___________.
Describe the process of double fertilization.
After fertilization the ovule becomes ______.
From the following identify the fate of the male gametes discharged in the synergid.
Fusion of one of the male gametes with egg nucleus is referred to as ______.
Ovules fall off after fertilization.
Identity the part of embryo sac which takes part in formation of primary endosperm nucleus during fertlisation
Name the following:
A diploid nucleus in central cell of embryo sac in plants.
