Question

28. Describe the various methods of asexual reproduction with examples.
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Answer 1

Answer:

1)budding

2)binary fission

Answer 2

Answer:

The different methods of asexual reproduction are as follows:

(1) Binary fission- The process in which parent cell elongates and gets divided into two identical daughter cells is called binary fission. Each daughter cell grows into an independent adult. It takes place in unicellular organisms.

(2)  Endospore Formation- The method in which a spore wall is formed around a bacterial cell to form an endospore is called endospore formation. Under favorable conditions, this endospore germinates to form an active bacteria.

(3) Vegetative propagation- The type of asexual reproduction in which vegetative parts of a plant like stems, leaves, and root, etc. give rise to new ones is called vegetative propagation. Examples: stem cutting in Champa, eye growth in potatoes, bud in case of Myriophyllum.

(4) Budding: It involves the formation of a new organism from a projection called bud. After growing to full size, the budgets detached from a parent and forms a new independent individual. It is commonly observed in yeast.

(5) Spore Formation: In this mode of reproduction, spores germinate and develop into a new individual, under favorable conditions. The spores are tiny spherical unicellular structures protected by a thick wall. It is seen in ferns and moss.

(6) Fragmentation: It is a form of asexual reproduction in which a new organism is formed from the fragments of the parent organism. It is the only mode of asexual reproduction in Spirogyra.