DNA and ChromosomeDNA is the source of information for making proteins:
The inbuilt tendency for variations during reproduction forms the basis for evolution:
(i) Maintenance of the existence: Organisms are maintaining the existence on the earth since their origin, million years ago only because of reproduction.
(ii) Preservation of species: Species are preserved because of reproduction. It is possible because reproducing organisms produce new individuals who are very similar to themselves.
(iii) Role in evolution: Some variations are produced in the new organisms during reproduction which plays an important role in evolution.
There are two main methods of reproduction in living organisms:
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Modes of Reproduction used by Single Organism
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➢ Modes of Reproduction used by Single Organism
Modes of asexual reproduction are:
(a) Fission
(b) Budding
Budding in Hydra
(c) Spore Formation
Spore Formation in Rhizopus
(d) Fragmentation
Fragmantation in Spirogyra(e) Regeneration
Regeneration in Planaria
(f) Vegetative Propagation
1. What is the Importance of Reproduction? | ![]() |
2. What are the Types of Reproduction? | ![]() |
3. What are the Modes of Reproduction used by Single Organism? | ![]() |
4. What is the difference between Sexual and Asexual Reproduction? | ![]() |
5. What are the advantages and disadvantages of Sexual and Asexual Reproduction? | ![]() |