P.S. Please answer atleast 2 questions. 1. Explain the basic phases of the cell cycle and...

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Biology

P.S. Please answer atleast 2 questions.
1. Explain the basic phases of the cell cycle and maincheckpoints.
2. Understand how cycle time range varies in different celltypes with specific examples.
3, Explain START in yeast and the restriction point in animalcells. Do these points of the cell cycle make sense?
4, Why are cyclins so important? Explain cyclins andcyclin-dependent protein kinases.

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1 The cell cycle is divided into two main phases first one is interphase and second is Mphase The period of actual cell division corresponds to the M phase mitosis phase The interphase is the time in which the cell preparing for cell division by undergoing both cell growth and DNA replication The interphase is further divided into the following G1 phase In this phase the cell prepare for the DNA replication S phase In this phase the cell undergo DNA replication G2 phase During this period following DNA replication and preceding the initiation of the mitotic prophase Cell cycle checkpoints insure the fidelity of the cell division which examines that the process at each phase of the cell cycle See Answer

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