ASEXUAL REPRODUCTION

REPRODUCTION IN ORGANISMS 

ASEXUAL REPRODUCTION 

ASEXUAL REPRODUCTION- In this Reproduction A single parent involved (Uniparental condition) and it is produce daughter organism are genetically identical to parents.

Asexual Reproduction Takes Place in Following Ways 

1) FISSION 

2) BUDDING

3) SPORE FORMATION 

4) FRAGMENTATION 

5) PLASMOTOMY

1) FISSION - This is the division of the parent body into two or more daughter individual identical to the parents.

BINARY FISSION- in this process of asexual reproduction the parent organism divides into two halves each halves forming and independent daughter organism. eg-AMOEBA 

MULTIPLE FISSION- In this Process Amoeba withdraws its pseudopodia and secretes of three layerd thick covering the cyst wall around itself this phenomenon is called as a encystment. on return of favourable condition that existed Amoeba divided by a Multiple Fission and produce a many minute Amoeba called as a psedopodiospores eg.AMOEBA, PLASMODIUM 

2) BUDDING - In this process daughter individual is formed from a small 

   part of bird arising  from the parent body

BUDDING IN YEAST- an outgrowth develops on one side of the cell nucleus divide mitotically and one nucleus shifted into the outgrowth now called but there is unequal division during the budding the young body small it grows in size get separated and mature into your newest organism

BUDDING IN ANIMAL - in freshwater sponges and a few Marine sponges Buds are formed within the parents body They are called Gemmules gemmules consists of small group of cell (Archaeocytes) enclosed by a protective coat during the favourable condition the mass of archaeocytes comes out Through the micropyle and forms a new colony. 

3) SPORE FORMATION -Spores are minute, single celled thin or thick walled 

     propagules. They are dispersion structures which also form new individuals. 

1) ZOOSPORES - The Zoospores are  

    special kind of motile and flagellate 

    spores produced inside the zoosporangia.

e.g. - Chlamydomonas 

2. CONIDIA - They are formed in 

   Penicillium and other ascomycetes. it is 

   non motile spores produced singly or in 

   chain by constriction at tip of special 

   hyphal branches called conidiophores.

4) FRAGMENTATION - The parent body breaks into two or more pieces called fragments each fragment develops into an individual. eg. SPIROGYRA, PLANARIA

5) PLASMOTOMY- eg- Multinuclear protozoa, Opalina

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Manish Mevada

M.Sc, M.Phil, B.Ed.

THANK YOU SO MUCH