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प्रश्न
List the changes observed in an angiosperm flower subsequent to pollination and fertilisation.
उत्तर
| Pre-fertilisation | Post-fertilisation |
| Overy | Fruit |
| Overy wall | Pericarp(fruit wall) |
| Ovule | Seed |
| Outer intergument | Testa (Outer seed coat) |
| Inner integument | Tegmen (Inner seed coat) |
| Secondary nucleus | Endosperm |
| Egg | Zygote |
| Synergids and antipodals | Degenerate |
| Hilum, funicle and micropyle | Shows no changes |
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संबंधित प्रश्न
Describe the post-fertilization changes in a flower.
Why are offspring of oviparous animals at a greater risk as compared to offspring of viviparous animals?
List the post-fertilisation events in angiosperms.
Answer the following question.
At what stage does the meiosis occur in an organism exhibiting haploidic life cycle and mention the fate of the products thus produced.
A multicellular, filamentous alga exhibits a type of sexual life cycle in which the meiotic division occurs after the formation of zygote. The adult filament of this alga has ______.
Cells become variable in morphology function in different regions of the embryo. The process is ______.
Which among these is NOT a post-fertilization event?
Which of the following situations correctly describe the similarity between an angiosperm egg and a human egg?
- Eggs of both are formed only once in a lifetime
- Both the angiosperm egg and human egg are stationary
- Both the angiosperm egg and human egg are mobile
- Syngamy in both results in the formation of zygote
Choose the correct answer from the options given below:
In the figure given below, mark the ovule and pericarp.
In a developing embryo, analyse the consequences if cell divisions are not followed by cell differentiation.
