NCERT Solutions for Class 11 Biology Chapter 10 Cell Cycle and Cell Division
Important Board Questions
Cell Cycle and Cell Division
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Question : 3
Describe the events taking place during interphase.
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Interphase involves a series of changes that prepare a cell for division. It is the period during which the cell experiences growth and DNA replication in an orderly manner. Interphase is divided into three phases.
1- G1 phase
2- S phase
3- G2 phase
G1 phase – It is the stage during which the cell grows and prepares its DNA for replication. In this phase, the cell is metabolically active.
S phase – It is the stage during which DNA synthesis occurs. In this phase, the amount of DNA (per cell) doubles, but the chromosome number remains the same.
G2 phase – In this phase, the cell continues to grow and prepares itself for division.
The proteins and RNA required for mitosis are synthesised during this stage.
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