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Cytokinesis-Meiosis-Cell Growth

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Presentation on theme: "Cytokinesis-Meiosis-Cell Growth"— Presentation transcript:

1 Cytokinesis-Meiosis-Cell Growth

2 CYTOKINESIS

3 Introduction

4 Introduction

5 Introduction

6 CYTOKINESIS Membrane-Enclosed Organelles Must Be Distributed to Daughter Cells During Cytokinesis

7 CYTOKINESIS Mitosis Can Occur Without Cytokinesis

8 Mitosis Can Occur Without Cytokinesis

9 Mitosis Can Occur Without Cytokinesis

10 MEIOSIS

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14 MEIOSIS Meiosis Includes Two Rounds of Chromosome Segregation

15 Meiosis Includes Two Rounds of Chromosome Segregation

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18 MEIOSIS Duplicated Homologs Pair During Meiotic Prophase

19 Duplicated Homologs Pair During Meiotic Prophase

20 MEIOSIS Homolog Segregation Depends on Several Unique Features of Meiosis I

21 Homolog Segregation Depends on Several Unique Features of Meiosis I

22 Crossing-Over Is Highly Regulated

23 MEIOSIS Meiosis Frequently Goes Wrong

24 CONTROL OF CELL DIVISION AND CELL GROWTH
Mitogens Stimulate Cell Division

25 Mitogens Stimulate Cell Division

26 CONTROL OF CELL DIVISION AND CELL GROWTH
Cells Can Enter a Specialized Nondividing State

27 Mitogens Stimulate G1-Cdk and G1/S-Cdk Activities

28 DNA Damage Blocks Cell Division: The DNA Damage Response

29 CONTROL OF CELL DIVISION AND CELL GROWTH
Many Human Cells Have a Built-In Limitation on the Number of Times They Can Divide

30 Abnormal Proliferation Signals Cause Cell-Cycle Arrest or Apoptosis, Except in Cancer Cells

31 Cell Proliferation is Accompanied by Cell Growth


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