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Bio Bootcamp

Bio Bootcamp. Evolution Review. Sample Question. Population A. This graph illustrates changes in two different lizard populations over time. Which process MOST LIKELY led to the change in the allele frequency for population B? Natural selection acting on a harmful trait

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Bio Bootcamp

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  1. Bio Bootcamp Evolution Review

  2. Sample Question Population A This graph illustrates changes in two different lizard populations over time. Which process MOST LIKELY led to the change in the allele frequency for population B? • Natural selection acting on a harmful trait • Natural selection acting on a beneficial trait • Natural selection acting on a dominant trait • Natural selection acting on a recessive trait Population B

  3. Sample Question A mutation occurs in the genes that code for coat color in caribou. Which change will most likely result from this mutation? A. A change in the selection pressures acting on coat color. B. A change in the coat-color genes of deer predator species C. An increase in coat-color diversity in the population D. An increase in the number of genes for coat color in the population.

  4. Sample Question The skeletons of vertebrate forelimbs contain variations of structures that were present in their common ancestor. What has MOST LIKELY cause the variation in forelimbs? • Changes in muscle structure • Changes in genetic code • Changes in vestigial structures • Changes in artificial selection

  5. Misconception: “Evolution is ‘just’ a theory.” Response: Scientific theories are explanations that are based on lines of evidence, enable valid predictions, and have been tested in many ways. In contrast, there is also a popular definition of theory—a “guess” or “hunch.” These conflicting definitions often cause unnecessary confusion about evolution.

  6. Evolution by Natural Selection • EVOLUTION is the THEORY of how organisms have changed over time. • Charles Darwin did NOT make this up! • NATURAL SELECTION is the MECHANISM by which Evolution takes place. • It does not attempt to explain how life began.

  7. Natural Selection

  8. Kettlewell – England – Peppered Moths

  9. Allelic Frequency

  10. Speciation

  11. Founder Effect/Bottleneck

  12. Geographic Isolation

  13. Habitat Isolation - Lizards

  14. Mechanical Isolation

  15. Mechanical Isolation

  16. Behavioral Isolation

  17. Temporal Isolation

  18. Reproductive Isolation

  19. Types of Evolution

  20. Convergent Evolution

  21. Divergent Evolution

  22. Artificial Selection

  23. Coevolution

  24. Fossils

  25. Biogeography

  26. Section 2 Evidence of Evolution Chapter 15 Hemoglobin Comparison Biochemical

  27. Biochemical Section 2 Systematics Chapter 17 Similarities in Amino Acid Sequences

  28. Universal Genetic Code

  29. Homologous Structures • Forelimbs of vertebrates

  30. Analogous Structures

  31. Vestigial Structures

  32. Section 2 Evidence of Evolution Chapter 15 Evidence of Whale Evolution

  33. Embryology

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