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1 1 Asexual Reproduction Mitosiss Mitosis is the process in which the nucleus divides to form two new nuclei. How does mitosis differ in plants and animals?
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Asexual Reproduction

Feb 22, 2016

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Asexual Reproduction. Mitosis s. Mitosis is the process in which the nucleus divides to form two new nuclei. How does mitosis differ in plants and animals?. 1. Animated Mitosis Cycle. http://www.cellsalive.com/mitosis.htm. Interphase Prophase Metaphase Anaphase - PowerPoint PPT Presentation
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Page 1: Asexual  Reproduction

1 1

Asexual ReproductionMitosiss

Mitosis is the process in which the nucleus divides to form two new nuclei. How does mitosis differ in plants and animals?

Page 2: Asexual  Reproduction

Animated Mitosis Cyclehttp://www.cellsalive.com/mitosis.htm

• Interphase• Prophase• Metaphase• Anaphase• Telophase & Cytokinesis

Page 3: Asexual  Reproduction

Interphase occurs before mitosis begins

• Chromosomes are copied (# doubles)• Chromosomes appear as threadlike coils

(chromatin) at the start, but each chromosome and its copy(sister chromosome) change to sister chromatids at end of this phase

CELL MEMBRANENucleus

Cytoplasm

Page 4: Asexual  Reproduction

InterphaseAnimal Cell Plant Cell

Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

Page 5: Asexual  Reproduction

Prophase 1st step in Mitosis

• Mitosis begins (cell begins to divide)• Centrioles (or poles) appear and begin to

move to opposite end of the cell. • Spindle fibers form between the poles.

CentriolesSister chromatids

Spindle fibers

Page 6: Asexual  Reproduction

ProphaseAnimal Cell Plant Cell

Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

Spindle fibers

Centrioles

Page 7: Asexual  Reproduction

Metaphase 2nd step in Mitosis

• Chromatids (or pairs of chromosomes) attach to the spindle fibers.

Centrioles

Spindle fibers

Page 8: Asexual  Reproduction

MetaphaseAnimal Cell Plant Cell

Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

Page 9: Asexual  Reproduction

Anaphase 3rd step in Mitosis

• Chromatids (or pairs of chromosomes) separate and begin to move to opposite ends of the cell.

Centrioles

Spindle fibers

Page 10: Asexual  Reproduction

AnaphaseAnimal Cell Plant Cell

Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

Page 11: Asexual  Reproduction

Telophase 4th step in Mitosis

• Two new nuclei form. • Chromosomes appear as chromatin (threads

rather than rods).• Mitosis ends.

NucleiNuclei

Chromatin

Page 12: Asexual  Reproduction

TelophaseAnimal Cell Plant Cell

Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

Page 13: Asexual  Reproduction

Cytokinesisoccurs after mitosis

• Cell membrane moves inward to create two

daughter cells – each with its own nucleus with identical chromosomes.

Page 14: Asexual  Reproduction

Cell Cycle

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