explain types of asexual reproduction
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hydra, amoeba......
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- Asexual reproduction is the type of reproduction in which only one individual is involved.
- Here, no gametes are involved,but some part of the organism or the entire organism may give rise to the new individual.
- The types are as follows :
- Fission
- Budding
- Regeneration
- Fragmentation
- Spore Formation
- Vegetative Reproduction
FISSION :
- In pigeon, the organism divides or splits into two or more parts.
- There are two types of fission namely binary fission and multiple fission.
- The binary fission is shown in amoeba and leishmania.
- These organism divide into two new organisms during division.
- The multiple fission is shown in plasmodium.
- During division, the plasmodium divides into many daughter cells simultaneously.
- The yeaat on the other hand, put out small buds with separate and grow further.
FRAGMENTATION :
- This is shown in Spirogyra.
- After maturation, it simply breaks up in two different small pieces.
- The new fragments further grow into new individuals.
REGENERATION :
- Many organisms have the ability to give rise to new individual organisms from their body parts.
- The examples include hydra and planaria.
- Planaria can be cut into any number of pieces and each piece will grow into a new complete organism.
- It can only be carried out by specialised cells.
BUDDING :
- Organisms like hydra, develops a bud as an outgrowth due to repeated cell division.
- These buds, father detached from the parent body after getting fully matured and become new independent individual.
VEGETATIVE PROPAGATION :
- There a lot number of plants which grows with the help of different parts of a plant in some appropriate conditions.
- This property of vegetative propagation is used in the methods of layering and grafting to grow many plants for agricultural purposes.
- These methods make possible the propagation of plants such as fruit plants that have lost the capacity to produce seeds.
- Theother advantage of it is that all the plants produced are genetically similar enough to the parent plant to have its characteristics.
- This also includes the bryophyllum leaf.
- In a bryophyllum leaf, small buds are produced in the notice along the leaf margin.
- These buds, fall on the soil and develop a new plant.
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