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Minimum Marks Required in NEET 2024 for MBBS Category-Wise

Difference between Fragmentation, Gemmulation & Regeneration - Practice Questions & MCQ

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET

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Fragmentation, Gemmulation & Regeneration

Fragmentation:

  • The parent organism can be divided into many pieces called fragments. 
  • Each piece will develop into a complete individual.
  • A great example of fragmentation can be seen in spirogyra. 
  • Spirogyra is a green alga that floats freely on freshwater ponds. Under a microscope, it can be seen as a rectangular cell with a nucleus in the vacuole located in the centre. 
  • The rectangular cells are joined together in long strands called a filament.
  • When a filament is divided into many pieces, each piece will grow into individual filaments.

Regeneration:

  • Regeneration is asexual reproduction is the ability of a simple organism to re-grow its lost parts.
  • Simple organisms are more successful with regeneration than complex organisms. 
  • In morphallaxis type of regeneration, the whole body grows from a small fragment.
  • It is seen in sponges, hydra, planaria.
  • In epimorphosis type of regeneration, the lost body parts are replaced.

Gemmulation:

  • Gemmae are unicellular or multicellular propagules.
  • These detach from the parent and grow into new individuals.
  • For example, Marchantia.
     

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