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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 the different ways apomictic seeds can develop, Give an example of each.
Answer the following question.
When a seed of orange is squeezed, many embryos, instead of one are observed. Explain how it is possible.
State what is apomixis. Write its significance. How can it be commercially used?
The ______ collect the pollen grains.
Fill in the blanks:
The male whorl, called the ________ produces ________.
Fill in the blank:
The ________contains the egg or ovum.
Fill in the blank:
The ______ is the base of the flower to which other floral parts are attached.
Fill in the blank:
________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.
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 | ||
Which of the following is TRUE with respect to cleavage polyembryony?
Apomixis is a type of reproduction that results is the development of a/an ______.
The occurrence of two or more embryos in one ovule is called ______
Adventive polyembryony in citrus is due to ______.
What is polyembryony and how can it be commercially exploited?
What is pollen grain?
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.
