Name: Role of Hormones in Reproductive Functions
Uploaded: 2019-07-19
Duration: 4 min 51 s
Description: Female sex hormones play a significant role in sexual development, puberty, menstruation, pregnancy, menopause, and general health. In this video, we will di...

Question

Explain with examples types of asexual reproduction in unicellular organism.

Accepted Answer

Asexual reproduction in unicellular organisms are as follows:

1. Binary Fission:

The parent cell divides to form two similar daughter cells is called binary fission. It occurs either by mitosis or amitosis.

E.g.: Prokaryotes (Bacteria), Protista (Amoeba, Paramecium, Euglena, etc.) and eukaryotic cell-organelle like mitochondria and chloroplasts perform asexual reproduction by binary fission.

A diagram showing binary fission in Amoeba.

2. Multiple Fission:

Multiple fission is a type of asexual reproduction that takes place in Amoeba and some similar protists.

Firstly Amoeba stops the formation of pseudopodia and stops the intake of food and it becomes rounded by formatting a protective covering around the plasma membrane.

They are now called a cyst. Later, repetitive nuclear division takes place inside the cell and after all the development, during the favourable condition, the cysts burst open to release the daughter cells.

Labelled diagram of multiple fission of Amoeba.

3. Budding:

Yeast reproduces by budding. A bulb-like projection formed on the body of an organism is known as the bud.

The nucleus of the parent body divides into two, and one of the nuclei goes into the bud. When the bud gets matured, it detaches itself from the parent body and becomes an independent individual.

The labelled diagram of budding in a yeast cell.

Explain with examples types of asexual reproduction in unicellular organism.

Important Questions on Life Processes in Living Organisms Part - 2

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