Cell cycle or the cell division is the biological process during which a cell divides for the formation of daughter cells. The complete event is carried out in multiple steps and the total time required for a cell cycle and cell division is about 24 hours.
The cell division is an important process through which a single-celled develops into a new organism.
There are two types of Cell Cycle:
Mitosis – All unicellular or Single-celled organisms including bacteria and algae, which reproduce asexually undergo mitosis process of cell division.
Meiosis – All multicellular organisms including plants, animals, birds, and insects which reproduce sexually undergo meiosis process of cell division to create their reproductive cells. There are two types of meiosis – meiosis I and meiosis II.
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Frequently asked Questions on CBSE Class 11 Biology Notes Chapter 10: Cell Cycle and Cell Division
What are the types of ‘Cell division’?
Cells must divide in order to produce more cells. They complete this division in three different ways called mitosis, meiosis, and binary fission.
What are the main stages of ‘Meiosis’?
Meiosis-I has Prophase-I, Metaphase-I, Anaphase-I and Telophase-I. Prophase-I is sub-divided into Leptotene, Zygotene, Pachytene, Diplotene and Diakinesis.
What is G1 phase of cell cycle?
G1 is an intermediate phase occupying the time between the end of cell division in mitosis and the beginning of DNA replication during S phase.