BLG 311 Chapter Notes - Chapter 17: Cytoskeleton, Bromodeoxyuridine, Coiled Coil
25 Dec 2016
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Document Summary
A cell reproduces by performing an orderly sequence of events in which it duplicates its content and divides into two daughter cells. The cell cycle involves: cell growth and chromosome replication, segregation of the chromosome to daughter cell, cell division. The eukaryotic cell cycle is divided into four phases: Longest cell cycle time occupies 23 hours. During interphase, the cell grows and makes copies of its dna. Consist of g1, s phase, and g2 phase. Provides time for the cell to monitor the internal and external environment to ensure favourable conditions. G1: during this phase, also called the first gap phase. The cell grows physically larger, copies organelles and makes the molecular building blocks. Occurs between m phase and s phase. Length varies depending on the external conditions and extracellular signals from other cells. If extracellular conditions are unfavourable, cells delay progress through g1 and may even enter a specialized resting state known as g0 (g zero)
