Science, asked by muskan46, 1 year ago

what is asexual reproduction explain

Answers

Answered by sahanaraj2005
2

asexual reproduction

   it is means the gaments (reproductive cells ) are not involved.this happens in unicellular organism  and tiny multicellular organism.


for example

binary fission in amoeba

1.the amoeba withdraw its psedopodia and become spherical in shape .

2.the nuclei divides into two

3.the two daughter nuclei moves to the opposite ends of the cell.

4.the cytoplasm divides cell membrane into two

thus the two daughter nuclei is formed. the each one feeds and grow into adult each capable of dividing into two


budding in hydra

hydra is a small multi-cellular organism which is about 1-3cm long found in freshwater lakes , ponds , rivers , streams .....

1. a small bud is formed on the animal.

2. tentacles develop on the end of the bud.

3.the divides from the adult and forms a new individual


the individual formed by this process is call clones.

Answered by Anonymous
0

Hello dear user



☻ Asexual reproduction ☻


Formation of new individuals from the cells of a single parent known as asexual reproduction.


● Types of asexual reproduction.


There are major 6 types of asexual reproduction :-


1 ) = Binary fission


2 ) = Fragmentation


3 ) = Budding


4 ) = Spore formation


5 ) = Regeneration


6 ) = Vegetative propagation.


● Fission


There are two of Fission :-


1 ) = Binary Fission


2 } = Multiple Fission


● Binary fission


Fission means " splitting into two "In binary fission the nucleus of the Amoeba rapidly divides into two nucleic after the division of cytoplasm , the two daughter cells are formed.


Two examples of binary fission = Amoeba and Leishmania.


2. Multiple fission

The parent cell divides into many daughter cells.


e.g.Plasmodium.


● Fragmentation


It is the accidental process when broken pieces of an organism grows in a complete organism.


It occurs in multicellular organism.


Two examples are :-Lichens , Flatworms


● Budding


The process by which a bud develops as a outgrowth on parent body.


When these buds become mature these buds detach from the parent body.


Two examples are :- Hydra and Yeast


● Spore formation


Spores are covered by thick walls they protect them until they come in contact with suitable conditions.


They produce new individuals under favourable conditions


Two examples are - Ferns , Mosses


● Regeneration


When simple animals develop a new individuals from their broken older parts it is known as regeneration.


Two examples of regeneration are - Planaria , Sea Star


● Vegetative propagation


In vegetative propagation reproduction takes place from the vegetative parts like stem , roots and leaves.


Method for vegetation propagation


● Natural


1 ) = By grafting - Dahlias


2 ) = By stems - potatoes


3 ) = By leaves - Bryophyllum


● Artificial


1 ) = Grafting - Mango


2 ) = Cutting - Rose


3 )= Layering - Jasmine




Thanks !! ☻

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