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Asexual Reproduction

Asexual reproduction is a method of reproduction that involves only one parent and produces offspring that are genetically identical to the parent, resulting in no genetic variation. This includes several mechanisms such as binary fission in bacteria and protozoa, budding in hydra and yeast, spore formation in fungi, and vegetative propagation in plants. Some organisms can regenerate lost body parts or even develop an entirely new individual from a fragment. Cloning, whether natural or engineered, also falls under asexual reproduction. Understanding these processes is vital for applications in genetics and biology.

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Asexual Reproduction

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  1. Asexual Reproduction Genetics & Heredity

  2. Asexual Reproduction + - No genetic variation – same DNA Can outgrow environment • Same DNA • Requires one parent • Rapid

  3. Binary Fission • Simplest form of reproduction • Parent reproduces genetic material • Divides into two daughter cells • Examples • Bacteria • Protozoa • Some Algae

  4. Budding • New organism develops from an outgrowth or bud • Examples • Hydra • Yeast • Sponges

  5. Spores • Specialized cells with tough outer coating which protects inner cell • Examples • Ferns • Mushrooms • Fungi - Mold

  6. Regeneration • Ability to re-grow lost body parts • Some organisms can grow whole new organism from a single piece of the original • Examples • Sea stars, star fish • Salamander • Gecko

  7. Vegetative Propagation • Cells separated from parent to form completely new independent individual • Examples • Roots • Stems • Runners • Cuttings • Other structures: tubers, corms, bulbs

  8. Cloning •  Scientifically engineered, genetically identical copies of a biological entity • Examples • Naturally occurring - Identical Twins • Dolly • Body parts

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