Cell Division - Biology Class 11

Notes | Biology
Complete Notes on Cell Division
For: Science Class 11

It is a cyclic process in which the division of nucleus is followed by division of cytoplasm as a result daughter cells are formed.

Cell Cycle

All the changes that take place during cell growth and cell division are called cell cycle. Cell cycle can be divided into following phases

• Interphase: The stage when cell becomes ready to divide is called interphase. It is subdivided into G1 Phase, G2 Phase, S Phase
• Karyokinesis: It is the process of division of nucleus. It is subdivided into Prophase, Metaphase, Anaphase, Telophase.
• Cytokinesis:  It is the process of division of cytoplasm.

Types of cell division

1. Amitosis cell division or direct cell division

This cell division takes place in prokaryotic and unicellular eukaryotic animals. During the process, the nucleus becomes elongated. The nucleus divides into two nuclei by forming constrictions. The cytoplasm also divides into two parts and the cell membrane is also constricted. Thus two daughter cells are formed.

2. Mitosis cell division (Open the link to read about Mitosis cell division)

3. Meiosis Cell Division (Open the link to read about Meiosis cell division)

Last Topic >> Differences between mitosis and meiosis cell Division (Open the link to read)

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