explain different modes of unisexual reproduction
Dear student,
Different types of unisexual (or asexual) reproduction includes:
1.Binary fission- Unicellular parent divides into two organisms.Division can take place in any plane. Examples- Amoeba,Paramecium.
2.Multiple fission- Nucleus of the parent divides into many nuclei by repeated divisions (amitosis).Then division of cytoplasm occurs enclosing each nuclei. Example- Plasmodium (Malarial parasite)
3.Budding- Organisms use regenerative cells for reproduction. Example- In Hydra, a bud develops as an outgrowth due to repeated cell division at a specific site. The bud develops into tiny individual and finally detaches when matured.
4.Fragmentation- In multicellular organism with relatively with simple body organisation follow this. Example- In Spirogyra, the organism breaks into smaller pieces when matured. These pieces then grow into new individuals.
5.Regeneration- Some organisms have ability to give rise to a new individual from any cut part of their body. Example- Planaria.
6.Vegetative propagation- In many plants parts like roots,stem and roots can develop into new plants under appropriate conditions. This is used in many methods like layering and grafting. Examples- Sugarcane, roses,etc.
7.Spore formation- In many simple multi-cellular organism, special reproductive parts that bears spores are present. These spores then give rise to new individuals. Example- Rhizopus, which have sporangia that contains spores.
Regards.
Different types of unisexual (or asexual) reproduction includes:
1.Binary fission- Unicellular parent divides into two organisms.Division can take place in any plane. Examples- Amoeba,Paramecium.
2.Multiple fission- Nucleus of the parent divides into many nuclei by repeated divisions (amitosis).Then division of cytoplasm occurs enclosing each nuclei. Example- Plasmodium (Malarial parasite)
3.Budding- Organisms use regenerative cells for reproduction. Example- In Hydra, a bud develops as an outgrowth due to repeated cell division at a specific site. The bud develops into tiny individual and finally detaches when matured.
4.Fragmentation- In multicellular organism with relatively with simple body organisation follow this. Example- In Spirogyra, the organism breaks into smaller pieces when matured. These pieces then grow into new individuals.
5.Regeneration- Some organisms have ability to give rise to a new individual from any cut part of their body. Example- Planaria.
6.Vegetative propagation- In many plants parts like roots,stem and roots can develop into new plants under appropriate conditions. This is used in many methods like layering and grafting. Examples- Sugarcane, roses,etc.
7.Spore formation- In many simple multi-cellular organism, special reproductive parts that bears spores are present. These spores then give rise to new individuals. Example- Rhizopus, which have sporangia that contains spores.
Regards.
