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Asexual Reproduction


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Published in: Technology, Education

Asexual Reproduction

  1. 1. Asexual Reproduction Mr.Miller
  2. 2. Is this Statement true or false? <ul><li>Two parents are needed to produced a new organism </li></ul>
  3. 3. What in the world is this?
  4. 4. This is a starfish Some starfish have the ability to regenerate if their limbs are removed
  5. 5. What is reproduction? <ul><li>Reproduction is the process of producing offspring </li></ul><ul><li>Offspring - a new organism produced by one or two parents </li></ul><ul><li>There are two types of reproduction </li></ul><ul><ul><li>Asexual Reproduction </li></ul></ul><ul><ul><li>Sexual Reproduction </li></ul></ul>
  6. 6. What is asexual reproduction ? <ul><li>Asexual Reproduction is the process of producing offspring with only one parent. </li></ul>
  7. 7. How does this happen? <ul><li>There are several forms of asexual reproduction, which include: </li></ul><ul><li>Regeneration (Fragmentation) </li></ul><ul><li>Budding </li></ul><ul><li>Binary Fission </li></ul><ul><li>Mitosis </li></ul>
  8. 8. What is Budding? <ul><li>Budding is a form of asexual reproduction </li></ul><ul><li>Budding involves the development pinching off of a new cell </li></ul><ul><li>Budding is very common in plants and fungi , but may be found in animal organisms as well, such as the Hydra . Usually, the protrusion stays attached to the primary organism for a while, before becoming free. The new organism is genetically identical to the primary one (a clone ). </li></ul>
  9. 9. Budding in a hydra
  10. 10. Regeneration (Fragmentation) <ul><li>Regeneration is another form of asexual reproduction </li></ul><ul><li>During regeneration, an organism breaks into two or more parts. </li></ul><ul><li>Each part can grow into separate organisms </li></ul><ul><li>Starfish and sponges have the ability to reproduce asexually by regeneration </li></ul>
  11. 11. Binary Fission <ul><li>Binary fission is a process of asexual reproduction in prokaryotic cells </li></ul><ul><li>Binary fission has four steps </li></ul><ul><ul><li>1. cell growth </li></ul></ul><ul><ul><li>2. DNA replication </li></ul></ul><ul><ul><li>3. Cell separation & growth </li></ul></ul><ul><ul><li>4. The cell splits in two </li></ul></ul>
  12. 12. Asexual Reproduction Poster <ul><li>Instructions: You must create a poster that contains the following elements </li></ul><ul><li>Title (5pts) </li></ul><ul><li>Definition of Title term (10pts) </li></ul><ul><li>A drawing to represent each type of asexual reproduction(20 pts each) </li></ul><ul><li>Title to label the type of asexual reproduction be displayed (5 pts each) </li></ul><ul><li>A description of what occurs during this type of asexual reproduction (10 pts each) </li></ul>
  13. 13. What is mitosis? <ul><li>Mitosis is the process of cell division in eukaryotic cells </li></ul><ul><li>Cells have a life cycle which is called the cell cycle. The cell cycle includes two stages: </li></ul><ul><ul><li>Interphase </li></ul></ul><ul><ul><li>Mitosis </li></ul></ul>
  14. 14. Which organisms reproduce this way? <ul><li>Amoebas are single cell organisms that use mitosis to reproduce </li></ul><ul><li>The cells in the human body also reproduce through mitosis </li></ul>
  15. 15. Interphase <ul><li>Before cells can divide their DNA must be replicated during interphase . </li></ul><ul><li>DNA is organized into structures called chromosomes </li></ul><ul><li>Then Cell Division occurs in a series of stages or phases </li></ul>
  16. 16. <ul><li>There are four phases in mitosis: </li></ul><ul><ul><li>Prophase </li></ul></ul><ul><ul><li>Metaphase </li></ul></ul><ul><ul><li>Anaphase </li></ul></ul><ul><ul><li>Telophase </li></ul></ul>
  17. 17. Prophase
  18. 18. Metaphase
  19. 19. Anaphase
  20. 20. Telophase
  21. 21. Cytokinesis
  22. 22. Lets Review What We Learned! <ul><li>What is reproduction? </li></ul>
  23. 23. Reproduction is the process of producing offspring
  24. 24. What Are Offspring?
  25. 25. Offspring are new organisms created by one or two parents
  26. 26. What are the two types of reproduction?
  27. 27. Asexual Reproduction & Sexual Reproduction
  28. 28. What is Asexual Reproduction?
  29. 29. Asexual Reproduction is the process of producing offspring with only one parent