Asexual Reproduction
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Asexual Reproduction

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Asexual Reproduction Presentation Transcript

  • 1. Asexual Reproduction Tuesday, March 3, 2009
  • 2.  
  • 3. What is reproduction?
    • Reproduction is the process by which organisms produce more of their own kind.
    • Think-Pair-Share: Is reproduction necessary for the survival of an individual, species, or both? Explain.
  • 4. Asexual Reproduction
    • Only one parent is involved.
    • Offspring are genetically identical to the parent.
    • All cells come from a single cell (Psst! They are all clones.)
  • 5. Mitosis - Body Cells
    • Is the exact duplication of the nucleus of a cell so that it forms two identical cells during cell division.
  • 6. Binary Fission
    • The nucleus and cell divides by mitosis to form two new identical daughter cells. Occurs in single-celled organisms like amoeba and paramecium.
  • 7. Budding
    • The division of cytoplasm is unequal so that one daughter cell is larger than the other. They can separate or remain attached. Occurs in hydra and yeast.
  • 8. Vegetative Propagation
    • New plants develop from the roots, stems, or leaves of the parent plant. Occurs only in plants (fruit trees, pineapples, etc.).
  • 9. Regeneration
    • Regrow lost or damaged part to restore function. Occurs in starfish, planarians, and newts.
  • 10. Sporolation
    • Reproduction from specialized single-cells from one parent. Occurs in mold and fungi.
  • 11. Advantages and disadvantages
    • BRAINSTORM: What are some potential benefits for organisms that reproduce asexually?
    • BRAINSTORM: What are some potential disadvantages for this type of reproduction?