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Types of Reproduction

Types of Reproduction. Asexual Sexual. Background…. Heredity -The transmission of genetic information (through DNA) from parents to offspring Genetics - The science of heredity, dealing with resemblances (likeness) and differences of related organisms. Purpose of Reproduction.

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Types of Reproduction

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  1. Types of Reproduction Asexual Sexual

  2. Background…. • Heredity-The transmission of genetic information (through DNA) from parents to offspring • Genetics- The science of heredity, dealing with resemblances (likeness) and differences of related organisms.

  3. Purpose of Reproduction • Why do organisms reproduce? • To make sure a species can continue. Definition: Reproduction is the process by which an organism produces others of its same kind. (OFFSPRING)

  4. Asexual Reproduction • A new organism (sometimes more than one) is produced from one organism. • The offspring will have genetic material uniform with the genetic material of the parent organism. This means they will be genetically alike.

  5. Types of Asexual Reproduction • Budding • Regeneration • Fission (Binary fission)

  6. Budding • Duplicate plant or animal begins to form at the side of the parent and enlarges until an individual is created. • Very common in plants

  7. http://www.waycross.edu/faculty/bmajdi/hydra%20budding.jpg

  8. http://judyepstein.com/images/DesertImages/Budding-Purple-LG.jpghttp://judyepstein.com/images/DesertImages/Budding-Purple-LG.jpg

  9. Regeneration • The ability to restore a full organism lost or damaged tissues, organs or limbs. (Common feature in invertebrates, like worms and starfish.)

  10. http://www.vsf.cape.com/~jdale/science/starfishregenerating.jpghttp://www.vsf.cape.com/~jdale/science/starfishregenerating.jpg

  11. http://classes.design.ucla.edu/Spring05/152BC/projects/saito/ex3/planaria.jpghttp://classes.design.ucla.edu/Spring05/152BC/projects/saito/ex3/planaria.jpg

  12. Fission • Also called binary fission. -Becoming two by division of the complete organism. • A type of cell division.

  13. http://wappingersschools.org/RCK/staff/teacherhp/johnson/visualvocab/BinaryFissionParamecium.jpghttp://wappingersschools.org/RCK/staff/teacherhp/johnson/visualvocab/BinaryFissionParamecium.jpg

  14. http://coris.noaa.gov/glossary/binary_fission_186.jpg

  15. Sexual Reproduction • Requires two sex cells – egg and sperm -Found in humans and larger mammals • The egg and sperm join to form an entirely new organism • Different from the parent organism BUT having genetic information from both parents

  16. IMPORTANT TO KNOW! • Asexual reproduction results in offspring that are genetically identical to the parent organism (exactly the same) • Sexual reproduction results in offspring that are genetically different from the parent organisms (like characteristics). -This allows for DIVERSITY

  17. Sexual Reproduction +

  18. DAY 2….Genes, Dominance, and Inheritance

  19. Mendel ' s Theory of Inheritance • The focus of genetic research shifted to understanding what really happens in the transmission of hereditary traits from parents to children. 

  20. DAY 2….

  21. Punnett Square • Characteristic-Eye Color • BB-Homozygous for Blue Eyes • bb-Homozygous for Brown Eyes • How many offspring have BLUE eyes? B B b b

  22. Punnett Square • Characteristic-Eye Color • BB-Homozygous for Blue Eyes • bb-Homozygous for Brown Eyes • How many offspring have BLUE eyes? B B b b Bb

  23. Punnett Square • Characteristic-Eye Color • BB-Homozygous for Blue Eyes • bb-Homozygous for Brown Eyes • How many offspring have BLUE eyes? B B Bb b b Bb

  24. Punnett Square • Characteristic-Eye Color • BB-Homozygous for Blue Eyes • bb-Homozygous for Brown Eyes • How many offspring have BLUE eyes? B B Bb b b Bb Bb

  25. Punnett Square • Characteristic-Eye Color • BB-Homozygous for Blue Eyes • bb-Homozygous for Brown Eyes • How many offspring have BLUE eyes? B B Bb b b Bb Bb Bb

  26. Punnett Square • How many offspring have BLUE eyes? ALL FOUR! • Do any offspring carry the gene for brown eyes?

  27. CLONING • THE FACTS…. • Cloning in biology is the process of producing similar populations of genetically identical individuals that occurs in nature when organisms such as bacteria, insects or plants reproduce asexually. • The possibility of human cloning, raised when Scottish scientists at the Roslin Institute created the much-celebrated sheep "Dolly“. 1996-2003 Now on display in Scotland

  28. Writing AssignmentWrite a FULL response to the following question • If scientists were able to clone Dolly, they could soon want to clone humans. What are your views on cloning? What could cloning mean for the future? • In your response include- Medical Advantages & Disadvantages Ethical Concerns (is this right or wrong & why) Possible Problems

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