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प्रश्न
A dikaryon is formed when ______.
पर्याय
Meiosis is arrested
The two haploid cells do not fuse immediately
Cytoplasm does not fuse
None of the above
उत्तर
A dikaryon is formed when the two haploid cells do not fuse immediately.
Explanation:
In some fungi, the fusion of two haploid cells immediately results in diploid cells (2n). However, in other fungi (ascomycetes and basidiomycetes), an intervening dikaryotic stage (n + n, i.e. two nuclei per cell) occurs. Such a condition is called a dikaryon and the phase is called dikaryophase of fungus. A dikaryotic cell has two dissimilar haploid nuclei.
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संबंधित प्रश्न
______ are non- green and nonphotosynthetic in nature.
Organisms without nucleus and cell organelles belong to
- fungi
- protista
- cyano bacteria
- archae bacteria
Fungi shows ______ mode of nutrition.
Fungi do not contain ______.
A fungus ______ can be seen without microscope.
Common fungi used in preparing the bread is ______.
Give True (T) and False (F)
Funaria is a moss.
Match the following:
| 1. | Fungi | a. | Funaria |
| 2. | Mosses | b. | Cycas |
| 3. | Gymnosperms | c. | Adiantum |
| 4. | Flowering Plants | d. | Agaricus |
| 5. | Ferns | e. | Tamarind |
An association between roots of higher plants and fungi is called ______.
There is a myth that immediately after heavy rains in forest, mushrooms appear in large number and make a very large ring or circle, which may be several metres in diameter. These are called as ‘Fairy rings’. Can you explain this myth of fairy rings in biological terms?
