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What are the different modes of asexual reproduction ? Give them with examples. |
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Answer» Asexual reproduction takes place by six different methods. They are : (1) Fission (2) Budding (3) Spore formation (4) Regeneration (5) Fragmentation and (6) Vegetative propagation (1) Fission : Single celled organisms split into two equal offsprings or more offsprings. Ex : Paramoecium, bacteria. (2) Budding : A growth on the body as a bud grows to form identical copy of parent. Ex : Yeast. (3) Spore formation : Spores are produced in sporangium. Ex : Rhizopus, mucor, bacteria, ferms and mosses. (4) Regeneration : Ability of organisms to give rise to new individual organisms. Ex : Hydra, flatworm, tapeworm. (5) Fragmentation : New individual growth from a separate piece of parent organism. Ex : Flatworms, moulds, lichens, spirogyra. (6) Vegetative propagation : (a) Natural propagation : (i) Leaves : Ex : Bryophyllum (ii) Stems : Ex : Stolon – Vallisneria, Strawberry Bulbs – Onion Corms – Colacasia Tuber – Potato (b) Artificial propagation : (i) Layering : Eg : Nerium, guava, orange, rose. (ii) Cutting : Eg : Rose, Hibiscus, Sugarcane. (iii) Grafting : Eg : Sapota, Guava, Mango. |
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