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Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
Asexual reproduction
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Asexual reproduction

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  • 1. ASEXUALREPRODUCTION 2012
  • 2. Asexual Reproduction► Produces IDENTICAL OFFSPRING► Who: unicellular organisms, simple animals, many plants( at some point)► Asexual reproduction: ►Binary Fission ► Budding ► Spore Formation ► Regeneration ►Vegetative Propagation
  • 3. Binary Fission
  • 4. Binary Fission► Simplest form► Parent divides into two equal portions.► New cells: DAUGHTER CELLS► Smaller first…grow to normal size► WHO:  Bacteria(prokaryotic Mitosis)  Protozoa: Ameba and Paramecium
  • 5. Budding► Parentorganism divide into 2 UNEQUAL parts► New Individuals develop as outgrowths or “buds”► May separate or remain attached.► Who:  Yeast and Hydra, Sponges(Porifera) and some Worms.
  • 6. Spore Formation
  • 7. Spore► Spores: single specialized cells that when released from PARENT CELLS can GERMINATE to form new individuals► Some spores have hard outer covering► Some spores have Flagella► WHO:  Fungi, Algae, Protozoa
  • 8. Spore Formation
  • 9. Regeneration
  • 10. Regeneration►Regrowthof lost body parts►WHO: simple animals: ►Hydra, planarian, starfish, and earthworm.
  • 11. Animals and Parts RegeneratedCrayfish: claws, gangliaCrabs: clawsNewts: tails, limbs, jaws, organs, eyePlanaria: whole animal regeneratesLizards: tail, liverRabbits and Guinea pigs: skull bonesDogs: teethFish: brainFrogs: brain and cerebellum
  • 12. Vegetative Propagation► VEGETATIVE PROPAGATION► One part of plant gives rise to new one► Roots, Stems, or Leaves► Includes:  Natural  Bulb  Tuber  Runner  Rhizome  Corm  Artificial  Cutting  Layering  Grafting
  • 13. Bulbs►: Underground stem/leaves:► ONION, LILY, TULIP
  • 14. Tuber►A modified underground stem produced at the tip of a rhizome.► The "eyes" of the potato are actually buds.
  • 15. Runner► stem that grows sideways along the surface► Strawberry, grass
  • 16. Rhizome► stem that grows sideways underground► fern, iris, water lilies
  • 17. Corm► Short, thickened underground stem, usually covered with papery (dry) leaves.► Corms serve as organs of food storage and in some plants ( crocus and gladiolus) of asexual reproduction.► they are often mistaken for bulbs.
  • 18. ARTIFICIAL VEGETATIVE REPRODUCTION► Techniques to allow plants to be grown with desirable traits.
  • 19. Plant Cutting► stem, leaf or root: cut and dipped in hormones to encourage growth.► Stem – roses► Leaves – coleus► Root – sweet potato
  • 20. Plant Layering► stem bent to be covered by soil...covered part forms roots► raspberries, roses.
  • 21. Plant Grafting► stem or bud from one plant (stock) joined to another part (scion) at the growing regions

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