Chapter 4, Problem 3TYR

Summary Introduction

Introduction:

In cell cycle, a mother cell divides into two daughter cells. The cell cycle mechanism is divided into four stages G₁, S, G₂ and M. G₁, first gap phase within interphase, also known as growth phase. During G₁ phase, cell synthesis proteins and produces more number of mitochondria and ribosomes increase their size of growth. In G₁ phase, cell synthesis and accumulate materials are needed for DNA replication in the upcoming phase. In S phase, DNA replicates into two identical copies. In G₂ phase, cell synthesis proteins which control cell division and produce more organelles. They detect and repair the replicated DNA sequence. Nuclear division followed by cell division has occurred in M phase.