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Asexual vs. Sexual Reproduction

Asexual vs. Sexual Reproduction. Important Background Information. DNA is a chemical that contains information for an organisms growth and functions. DNA is made of two strands of molecules that resembles a twisted ladder or double helix. https://www.youtube.com/watch?v=8kK2zwjRV0M

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Asexual vs. Sexual Reproduction

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  1. Asexual vs. Sexual Reproduction

  2. Important Background Information • DNA is a chemical that contains information for an organisms growth and functions. DNA is made of two strands of molecules that resembles a twisted ladder or double helix. • https://www.youtube.com/watch?v=8kK2zwjRV0M • Chromosomes are basically compacted DNA, humans have 46 chromosomes or 23 pairs.

  3. Haploid vs Diploid Cells

  4. Haploid Vs Diploid • https://www.youtube.com/watch?v=1yu1Zuy_uEQ

  5. Make a Venn Diagram Asexual Reproduction Sexual Reproduction Both Types of reproduction in living organisms Pass DNA from parent to offspring

  6. Asexual Reproduction • Requires only one parent • Offspring have 100% the same chromosomes as the parent. • In other words, the offspring are exact “clones” of the parent. • Most unicellular organisms reproduce this way. • Mitosis • Movie

  7. Asexual Reproduction • Binary Fission • Bacteria • Protists Binary fission is a form of asexual reproduction where every organelle is copied and the organism divides in two.

  8. Asexual Reproduction • Budding • Hydra • Movie Budding is a means of asexual reproduction whereby a new individual develops from an outgrowth of a parent, splits off, and lives independently.

  9. Asexual Reproduction • Fragmentation Fragmentation is a means of asexual reproduction whereby a single parent breaks into parts that regenerate into whole new individuals.

  10. Asexual Reproduction • Regeneration Regeneration occurs when a body part has broken off and the organism grows a new one.

  11. Asexual Reproduction • Examples of organisms that reproduce asexually • Sea Star • Strawberry • Archaebacteria • Eubacteria • Euglena • Paramecium • Yeast

  12. Sexual Reproduction • Requires two parents that each share ½ of the genetic information. • Offspring share the characteristics of each parent. • Meiosis

  13. Sexual Reproduction • All the members of the Animal Kingdom • Fish • Mammals • Amphibians • Birds • Reptiles • Insects • Crustaceans

  14. Sexual Reproduction • Plant Kingdom • Flowers are the reproductive organs of plants. • Some flowers have both male and female reproductive organs on the same flower. Male flower Female flower

  15. Sexual Reproduction • Examples of organisms that reproduce sexually • Chickens • Iguanas • Lobsters • Sharks • Humans • Butterflies • Sunflowers • Roses

  16. Sexual Reproduction • Happens 2 ways • Internally (inside) • The egg is fertilized by sperm inside the female • Mammals, birds, reptiles, insects, spiders • Externally (outside) • The egg is fertilized by sperm outside the female • The female lays the eggs and then the male fertilizes them. • Fish and some amphibians • Plants and fungi (pollen and spores)

  17. Summarize • Write two paragraphs with 6 sentences each describing asexual and sexual reproduction. • Paragraph 1: Asexual reproduction is….. • Paragraph 2: Sexual reproduction is…

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