This is the Cell Cycle · This is the Cell Cycle M Phase. Eukaryotic Somatic (Body) Cell Division...

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Transcript of This is the Cell Cycle · This is the Cell Cycle M Phase. Eukaryotic Somatic (Body) Cell Division...

This is the Cell Cycle

M Phase

Eukaryotic Somatic (Body) Cell Division

Stages of Cell Cycle• Interphase

– G1 = Growth– S = DNA replication– G2 = Prepare for Mitosis

• M Phase– Mitosis = Division of Nucleus

• Prophase • Metaphase• Anaphase• Telophase

– Cytokinesis = Division of Cytoplasm

MITOSIS

REPRODUCTION OF BODY (somatic) CELLS

PRODUCES

2 IDENTICAL DIPLOID CELLS

Interphase• Cell Grows

• DNA is Replicated

• Cell gets ready to divide

Prophase• 1St phase of Mitosis• Chromosomes

become visible when chromatin condenses into chromosomes

• Nuclear Membrane & Nucleolus Disappear

• Centrioles move to the poles & produce spindle fibers

EARLY LATE

Metaphase• 2nd Phase of

Mitosis• Spindle Fibers

attach to the Centromeres

• Chromosomes Line up in the Middle/ Equator

Anaphase• 3rd Phase of

Mitosis• Sister

Chromatids are Pulled Apart (separated) to opposite poles of the cell

Telophase• 4th Phase of

Mitosis• Nuclear

Membrane & Nucleolus Reform

• Chromosomes Unwind into Chromatin

• Cell begins to pinch

Cytokinesis• Last Phase of Cell

Cyle

• Cytoplasm Divides

• 2 Identical daughter cells form with the SAME number of chromosomes as parent cell

Occurs during Telophase

MITOSIS & CYTOKINESIS

END RESULT:

Produces 2 Genetically Identical

Diploid Body (Somatic) Cells

Cytokinesis• ANIMAL CELL • PLANT CELL