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Evolution and its Controversies                                  1
Contents    Introduction   Evidences for   The Missing   Irreducible   Alternative                                        ...
Introduction  Introduction   Evidences for   The Missing   Irreducible   Alternative                                      ...
Evolutionary History of Life on Earth  Introduction   Evidences for   The Missing   Irreducible   Alternative             ...
EVIDENCES FOR DARWIN’STHEORY                         5
Fossil Records Introduction   Evidences for   The Missing   Irreducible   Alternative                                     ...
Homology Introduction   Evidences for   The Missing   Irreducible   Alternative                                           ...
Evidences for Darwin’s TheoryIntroduction   Evidences for   The Missing   Irreducible   Alternative                       ...
Natural Selection Introduction   Evidences for   The Missing   Irreducible   Alternative                                  ...
Genetic Recombination & Mutation Introduction   Evidences for   The Missing   Irreducible   Alternative                   ...
THE MISSING LINK                   11
Missing link- still missingIntroduction    Evidences for   The Missing   Irreducible   Alternative                        ...
Missing link- still missingIntroduction      Evidences for   The Missing      Irreducible   Alternative                   ...
Missing link- still missingIntroduction    Evidences for   The Missing     Irreducible   Alternative                      ...
Missing link- still missingIntroduction    Evidences for   The Missing   Irreducible   Alternative                        ...
Missing link- still missingIntroduction    Evidences for   The Missing     Irreducible   Alternative                      ...
Missing link- still missingIntroduction    Evidences for   The Missing   Irreducible   Alternative                        ...
Missing link- still missingIntroduction     Evidences for   The Missing    Irreducible   Alternative                      ...
IRREDUCIBLE COMPLEXITY                         19
Irreducible Complexity Introduction   Evidences for   The Missing   Irreducible   Alternative                             ...
Irreducible ComplexityIntroduction   Evidences for   The Missing    Irreducible   Alternative                             ...
Irreducible Complexity Introduction   Evidences for   The Missing   Irreducible   Alternative                             ...
Michael Behe’s Darwin’s Black Box Introduction   Evidences for   The Missing   Irreducible   Alternative                  ...
Michael Behe’s Darwin’s Black Box Introduction   Evidences for   The Missing   Irreducible   Alternative                  ...
Michael Behe’s Darwin’s Black BoxIntroduction   Evidences for   The Missing   Irreducible   Alternative                   ...
Michael Behe’s Darwin’s Black BoxIntroduction   Evidences for   The Missing   Irreducible   Alternative                   ...
Creationist ViewIntroduction   Evidences for   The Missing    Irreducible   Alternative                                   ...
1. Flagellum is NOT irreduciblyIntroduction Evidences for                               complex Alternative               ...
2. All flagella NOT identical Introduction   Evidences for   The Missing   Irreducible   Alternative                      ...
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Power 1537 (part 1)

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  • Genetic recombination can also be the basis for evolution. In the Mosquito Culex Pipiens, an accidental duplication of a gene resulted in an increase in gene products, or proteins, produced. The mosquito’s metabolic capabilities are then enhanced and it was able to break down insecticide more efficiently, resulting in a development of resistance to the particular insecticide.
  • Transcript of "Power 1537 (part 1)"

    1. 1. Evolution and its Controversies 1
    2. 2. Contents Introduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories• Introduction & Overview• Manifestations of Darwin Evolution Theory• The Missing Link in Evolution• Irreducible Complexity– Bacterial Flagellum• Alternative Theories• Conclusion 2
    3. 3. Introduction Introduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories• Evolution is a phenomenon that affected and changed species through time• Through natural selection• Fitter offspring will live to reproductive maturity - Pass the ‘survival’ genes - Proportion of survival genes will increase in population• Minimizes effect of genetic drift 3
    4. 4. Evolutionary History of Life on Earth Introduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity TheoriesHow did Life came about?• First cell probably arose from aggregation of particular inorganic compounds into a self- replicating feedback system• Known as abiogenesis 4
    5. 5. EVIDENCES FOR DARWIN’STHEORY 5
    6. 6. Fossil Records Introduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories• Remains of ancient organisms - Stromatolites - Archaeopteryx• Rough view of sequential change or missing links - Support speculation of descent with modification Stromatolites Archaeopteryx 6
    7. 7. Homology Introduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories• Similarities displayed among organisms of various ancestral origins - Homologous anatomical structure - Universal genetic codes - Stages & sequence in embryonic development across species• Common underlying traits - Vestigial vermiform appendix in humans and apes - Eye bulbs in blind grotto salamander 7
    8. 8. Evidences for Darwin’s TheoryIntroduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories Similar Feet Structures 8
    9. 9. Natural Selection Introduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories• Long neck of Giraffa camelopardalis (Giraffe) - External pressures selected for neck development - Feature evolved over time 9
    10. 10. Genetic Recombination & Mutation Introduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories• Mosquito Culex pipiens - Duplication of gene - Increase proteins produced - Enhance metabolic capabilities - Develop resistance and immunity to a particular insecticide 10
    11. 11. THE MISSING LINK 11
    12. 12. Missing link- still missingIntroduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories • Despite long history of archeology, many transitional forms are still missing - Even scientists agree • Examples of transitional forms like the Archaeopteryx was later discovered to be invalid ones - Archaeopteryx is not as closely related to modern birds as once thought • Because such transition forms have not been found, it means they never existed - And evolution must not have occurred 12
    13. 13. Missing link- still missingIntroduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories • Fossilization process: - Rare - Bias • Tissue type: soft / hard tissue • Habitat: Terrestrial / Aquatic • Fossilization process will never be an accurate representation of biodiversity in the past - Certain species would have been unrepresented: just because they were not found doesn’t mean they did not exist 13
    14. 14. Missing link- still missingIntroduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories• Archaeopteryx = Ancient wing/feather • Size of a raven • Known for well-developed flight feathers • Possess both dinosaur and bird features 14
    15. 15. Missing link- still missingIntroduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories • BUT - Archaeopteryx is still in between dinosaurs and modern birds Scientists still consider archaeopteryx to be a bird 15
    16. 16. Missing link- still missingIntroduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories• Archaeopteryx = Ancient wing/feather • Size of a raven • Known for well-developed flight feathers • Possess both dinosaur and bird features 16
    17. 17. Missing link- still missingIntroduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories • BUT - Even if Archaeopteryx was not a proper transitional form, many others have been found 17
    18. 18. Missing link- still missingIntroduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories • E.g. Ichthyornis Ulna • Fossils found • Much more closely related to modern birds • Has many features similar to modern birds, but also Keel primitive features 18
    19. 19. IRREDUCIBLE COMPLEXITY 19
    20. 20. Irreducible Complexity Introduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories• Some biological systems are too complicated - Not possible to have evolved from basics• Absence of a particular component - System will cease to function 20
    21. 21. Irreducible ComplexityIntroduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories Holding Bar Hammer Platform Catch Spring 21
    22. 22. Irreducible Complexity Introduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories• Irreducibly complex system not in gradual manner• However, evolution is a step-by-step process – Could not explain how these complex structures came about suddenly 22
    23. 23. Michael Behe’s Darwin’s Black Box Introduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories• Living cell is ‘black box’ - Unknown structure and functions within - Collection of molecules - Little complexity - Basic form of life 23
    24. 24. Michael Behe’s Darwin’s Black Box Introduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories• In 1950s, black box uncovered - More complicated than believed - Complexity was unique - Single system made up of many components - Well-arranged to fulfill a function 24
    25. 25. Michael Behe’s Darwin’s Black BoxIntroduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories 25
    26. 26. Michael Behe’s Darwin’s Black BoxIntroduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories 26
    27. 27. Creationist ViewIntroduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories • Bacterial flagellum best example of irreducible complexity - All proteins must be present for flagellum to serve primary function: motility - Impossible to have been derived from incomplete precursor - Hence, must have been created in complete state with full functionality by God 27
    28. 28. 1. Flagellum is NOT irreduciblyIntroduction Evidences for complex Alternative The Missing Irreducible Conclusion& History Darwin’s Link Complexity Theories• Flagellum can function with same level of efficacy with only 2/3 of its 297 amino acids• Even with missing parts, function is intact• Can survive long enough for evolutionary forces to act on it• Example: ‘knock-out’ E. coli bacteria – Up to half of flagellum genes which code for production of proteins deactivated on purpose. 28
    29. 29. 2. All flagella NOT identical Introduction Evidences for The Missing Irreducible Alternative Conclusion & History Darwin’s Link Complexity Theories• Proteins in the flagella vary across different bacterial families - Only 23 out of the 40 proteins found in E. coli bacteria flagellum are also found in other bacterial flagella• But if intelligent designer created flagella, all flagella in the universe would be identical 29

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