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Asexual Reproduction

Asexual Reproduction. What is Reproduction?. Reproduction is the process in which organisms produce more of their own kind. Asexual reproduction occurs when a new organism is produced by one parent. The new organism will be identical to the parent.

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Asexual Reproduction

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  1. AsexualReproduction

  2. What is Reproduction? • Reproduction is the process in which organisms produce more of their own kind. • Asexual reproduction occurs when a new organism is produced by one parent. The new organism will be identical to the parent. • Sexual Reproduction requires two parents each giving 23 chromosomes to the offspring.

  3. Types of Asexual Reproduction • Parthenogenesis • Fission • Vegetative Propagation • Fragmentation • Budding

  4. Parthenogenesis • A female organism produces an egg that develops into a new organism without being fertilized. • Identical copy of parent. • Examples: insects, reptiles and fishes. Example

  5. Whiptail Lizards Parthenogenesis • A female whiptail lizard may produce eggs that develop into identical versions of itself.

  6. Fission • A single-celled organism divides into two cells of the same size. • Each is identical to the other. • Examples:Bacteria, Paramecium, Amoeba Example

  7. Bacteria Fission • A single-celled organism that has no nucleus or cell wall and reproduces by splitting in two.

  8. Vegetative Propagation • New plants can be produced from sections of parent plants that are cut off. • Identical copy of parent. • Examples:spider plants, willow trees Example

  9. Strawberries Vegetative Propagation • Strawberries reproduce new plants by the division of cells from runners or roots.

  10. Fragmentation • An organism breaks up into fragments. • Each of these fragments develops into an identical copy of the original organism. • Examples:flatworm, planarian Example

  11. Planarians Fragmentation • The body of the parent breaks into pieces, each of which can produce an offspring

  12. Budding • A bud grows on the body of the parent. • Identical copy of its parent. • Sometimes the bud separates from the parent and becomes independent. • Examples:hydra, yeast, sponge Example

  13. Hydra Budding • Cell division forms a bud that is an identical copy of its single parent that separates from the parent and becomes independent.

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