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प्रश्न
In case of polyembryony, if an embryo develops from the synergid and another from the nucellus which is haploid and which is diploid?
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उत्तर
The synergid embryo is haploid, and the nucellus embryo is diploid.
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संबंधित प्रश्न
Explain any three advantages that seeds offer to angiosperms.
Why are some seeds referred to as apomictic seeds?
Mention one advantage of apomictic seeds to farmers.
Define Apomixis.
How polyembryony can be commercially exploited?
The ______ collect the pollen grains.
Fill in the blanks:
The male whorl, called the ________ produces ________.
Fill in the blank:
The pollen grains represent the ________.
Fill in the blank:
The ______ is the base of the flower to which other floral parts are attached.
Once the pollen reaches the stigma, the pollen tube traverses down the ________ to the ovary where fertilization occurs.
Fill in the blank:
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?
Which of the following is TRUE with respect to cleavage polyembryony?
The polyembryony commonly occurs in ______.
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?
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.
Give reason: Nucellar polyembryony is significant in horticulture.
Explain following term:
Polyembryony
