this is the cell cycle · this is the cell cycle m phase. eukaryotic somatic (body) cell division...
Post on 22-Jul-2020
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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
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