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प्रश्न
This method of asexual reproduction is seen in paramoecium.
विकल्प
transverse binary fission
longitudinal binary fission
simple binary fission.
regeneration
उत्तर
transverse binary fission
संबंधित प्रश्न
Describe briefly how regeneration is carried out in multicellular organisms like Hydra.
Explain the process of regeneration in Planaria.
How the process of regeneration in Planaria process different from reproduction?
Fertilisation is necessary even in asexual reproduction.
What is vegetative propagation?
State whether the following statement is true or false :
Spores produced by the bread mould plant are actually its seeds.
What is the name of asexual reproduction method in Spirogyra
Name the artificial propagation mehod used for the propagation of apple trees.
Name the natural method by which strawberry plants are propagated.
Name two plants which are propagated by layering method.
Can you consider cell division as a type of reproduction in unicellular organisms? Give reason.
Name two organisms which reproduce by the same asexual process as that of Amoeba.
What care should be taken while making a cutting from a plant?
One of the following organisms does not reproduce by budding. This is :
(a) Sponge
(b) Yeast
(c) Hydra
(d) Planaria
The factors responsible for the rapid spreading of bread mould on slices of bread are :
(i) presence of large number of spores in air
(ii) presence of large number of thread-like branched hyphae
(iii) presence of moisture and nutrients
(iv) formation of round shaped sporangia
(a) (i) and (iii)
(b) (ii) and (iv)
(c) (i) and (ii)
(d) (iii) and (iv)
In Spirogyra, asexual reproduction takes place by :
(a) division of a cell into two cells
(b) breaking up of filaments into smaller bits
(c) division of a cell into many cells
(d) formation of a large number of buds
The thread like structures that develop on a moist slice of bread in Rhizopus are ______.
The organisms which can reproduce by fragmentation are :
(a) Corals and Sponges
(b) Corals and Spirogyra
(c) sea anemone and Spirogyra
(d) Sponges and Sea anemones
The cut part of a plant stem (without roots) which is used in grafting is called :
(a) stock
(b) stump
(c) scion
(d) graft
An organism which can reproduce by two asexual reproduction methods one similar to the reproduction in yeast and the other similar to the reproduction in Planaria is :
(a) Spirogyra
(b) Bryophyllum
(c) Hydra
(d) Sea anemone
Put a tick mark (✓) against the correct alternative in the following statement
Grafting is a method of:
Fill in the blank:
The amount of cytoplasm in the parent cell is _____ than the amount in the bud.
State whether the following statement is true (T) or false (F):
A potato tuber is really an underground stem.
Mention the common method of reproduction in Jasmine.
Explain the process of budding in Hydra.
What is vegetative propagation? List with brief explanation three advantages of practising this process for growing some types of plants. Select two plants from the following which are grown by this process:
Banana, Wheat, Mustard, Jasmine, Gram.
Complete the following chart:
| Asexual reproduction | Sexual reproduction | ||
| 1. | Reproduction that occurs with the help of somatic cells is called as asexual reproduction. | 1. | ____________ |
| 2. | ____________ | 2. | Male and female parent are necessary for sexual reproduction. |
| 3. | This reproduction occurs with the help of mitosis only. | 3. | ____________ |
| 4 | ____________ | 4. | New individual formed by this method is genetically different from parents. |
| 5 | Asexual reproduction occurs in different individuals by various methods like binary fission, multiple fission, budding, fragmentation, regeneration, vegetative propagation, spore production, etc. | 5. | ____________ |
Fill in the blanks and rewrite the completed statements:
___________ acid inhibits growth leading to wilting of leaves.
In hydra the type of reproduction is ___________.
How is plant hybridisation carried out?
What are the objectives of plant hybridisation?
Explain the importance of the reproduction process.
Yeast reproduces asexually by means of multiple fission.
By which of the following egg in female gametophyte is accompanied?
The ability of a cell to divide into several cells during reproduction in Plasmodium is called ______
Rajesh observed a patch of greenish black powdery mass on a stale piece of bread.
Name the organism responsible for this and its specific mode of asexual reproduction.
Which one of the following pairs is wrongly matched while the remaining three are correct?
