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प्रश्न
How polyembryony can be commercially exploited?
लघु उत्तर
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उत्तर
- Polyembryony increases the chances of survival of the new plants.
- Genetically uniform parental type seedlings are obtained from nucellar embryos, thus nucellar adventive polyembryony is of great significance in horticulture.
- Plantlets obtained from these embryos are disease-free.
- These embryos can be isolated and grown on embryo culture to produce clones.
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संबंधित प्रश्न
Why are some seeds referred to as apomictic seeds?
Mention one advantage of apomictic seeds to farmers.
Answer the following question.
When a seed of orange is squeezed, many embryos, instead of one are observed. Explain how it is possible.
Fill in the blanks:
The male whorl, called the ________ produces ________.
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 | ||
Give an account of polyembryony.
Which of the following is TRUE with respect to cleavage polyembryony?
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.
Explain following term:
Polyembryony
