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Understanding Asexual Reproduction in Genetics

Explore the fascinating world of asexual reproduction and its impact on genetics and heredity. Learn about the different forms such as binary fission, budding, spores, regeneration, vegetative propagation, and cloning. Discover how asexual reproduction results in little to no genetic variation with examples from nature.

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Understanding Asexual Reproduction in Genetics

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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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