MODES OF ASEXUAL REPRODUCTION

Question 1

What are the different modes of asexual reproduction ?

Answer 1

1. Budding
2. Fission
   a) Binary fission
   - Irregular binary fission
   - Regular binary fission
   * Transverse binary fission
   * Longitudinal binary fission
   * Oblique binary fission
   b) Multiple fission
3. Fragmentation
4. Regeneration

Question 2

What is budding and give example of the organism which show this mode of reproduction ?

Answer 2

In budding the small projection arises from the parent body which mature and then get detached from the parent body as a new individual.

Example -
Unicellular organism - yeast etc.
Multicellular organism - hydra etc.

Question 3

Which organism show fission and what are the types of fission ?

Answer 3

Example - Commonly reported in monera and Protista
Types of Fission –
a) Binary fission
- Irregular binary fission
- Regular binary fission
* Transverse binary fission
* Longitudinal binary fission
* Oblique binary fission
b) Multiple fission

Question 4

Which organism show these mode of reproduction

           * Transverse binary fission 
           * Longitudinal binary fission 
           * Oblique binary fission

Answer 4

1. eg - Diatoms , bacteria , paramecium
2. eg - Euglena
3. eg - Dinoflagellates = eg - ceratium

Question 5

What is fragmentation ?

Answer 5

Parent body gets split up into fragments and then the each fragment grow to produce new organism

example -

1. Filamentous algae(spirogyra) and fungus
2. Protonema of moss
3. Hydra

Question 6

What is regeneration ?

Answer 6

It is the ability to regain the lost part.

eg - Lizard , Planaria(true regeneration)