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Question
Mention one advantage of apomictic seeds to farmers.
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Solution
Embryos formed through apomixis are generally free from infections.
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RELATED QUESTIONS
State what is apomixis. Comment on its significance. How can it be commercially used?
Explain any three advantages that seeds offer to angiosperms.
Why are some seeds referred to as apomictic seeds?
Explain the different ways apomictic seeds can develop, Give an example of each.
Define Apomixis.
The ______ collect the pollen grains.
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The ________contains the egg or ovum.
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________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.
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________is the transfer of pollen grains from the anther of the flower to the stigma of the same or a different flower
Once the pollen reaches the stigma, the pollen tube traverses down the ________ to the ovary where fertilization occurs.
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The ______ are coloured to attract the insects that carry the pollen. Some flowers also produce ______ or ______ that attracts insects.
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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 | ||
What is adventive polyembryony?
Give an account of polyembryony.
Which of the following is TRUE with respect to cleavage 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?
What is pollen grain?
Explain following term:
Polyembryony
