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Exploring Reproduction in Organisms: Asexual vs. Sexual Methods

Dive into the world of reproduction through a comparison of asexual and sexual methods in organisms. Learn about the unique traits of each method, examples in nature, and the significance of genetic inheritance.

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Exploring Reproduction in Organisms: Asexual vs. Sexual Methods

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  1. Reproduction • Organisms producing more organisms

  2. Reproduction • Species- • Organisms so closely related they can mate and produce fertile offspring • Mule- • Offspring of different species • Sterile, cannot produce offspring • Liger, Tiglon

  3. 2 Basic Types • Asexual • Sexual

  4. Asexual • One parent • Requires mitosis • Offspring are identical to the parent • Examples- • Binary fission- bacteria • Budding- hydra (p 679) • Cuttings- some plant (mums) • Runners- strawberry

  5. Sexual • Two parents • Male • Female • Requires meiosis • Forms gametes- • Reduces the chromosome number

  6. Sexual • Requires fertilization • Union of gametes • Restores diploid # • 1N + 1N = 2N • Offspring inherit ½ chromosomes from each parent • Offspring are different than the parents and each other (except identical twins)

  7. Sexual • Examples • Human • Other animals • Flowering plants

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