Chapter 19.2, Problem 3CYP

Summary Introduction

To explain:

How checkpoints control the cell growth.

Introduction :

There are four stages in a cell cycle; G₁, S, G₂ and M. There are three checkpoints; G₁, G₂ and M to control the speed at which a cell moves through a cell cycle. G₁, S and G₂ stages are part of interphase during which DNA is synthesized. In G₁ stage cell is prepared for the synthesis of DNA, in S stage DNA is replicated and in G₂ stage cell is prepared for cell division.