1 / 32

D3: Thursday, 12/19

D3: Thursday, 12/19. Tahlia collected data for the bluejay population this summer. She calculated the allele frequencies for a certain gene (toe length). Freq A = 0.6, Freq a = 0.4. She plans to sample the population again after three generations.

hue
Download Presentation

D3: Thursday, 12/19

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. D3: Thursday, 12/19 Tahlia collected data for the bluejay population this summer. She calculated the allele frequencies for a certain gene (toe length). Freq A = 0.6, Freq a = 0.4. She plans to sample the population again after three generations. If the allele frequencies HAVE NOT CHANGED at that time (0.6, 0.4), is the population evolving for that gene (toe length)?

  2. Key Concepts: • Genetic variability: genetic drift, gene flow, non-random mating, mutations, natural selection • Genetic equilibrium: Hardy-Weinberg principle • Speciation • Patterns of evolution: gradualism, punctuated equilibrium, adaptive radiation/divergent evolution, • convergent evolution (analogous structures), coevolution, extinction (gradual, mass)

  3. Genetic variation

  4. Factors that influence genetic variability within a population:

  5. 1.Genetic drift

  6. 2.Gene flow

  7. 3.Non-random mating

  8. 4.Mutations

  9. 5.Natural selection

  10. That list was WHAT?!

  11. Hardy-Weinberg Principle

  12. Five conditions to maintain genetic equilibrium:

  13. Speciation

  14. Types of Population (gene pool) Isolation

  15. Environmental factors

  16. Patterns of Evolution

  17. 1. Gradualism

  18. 2.Punctuated equilibrium

  19. 3. Adaptive radiation/Divergent evolution

  20. 4.Convergent evolution

  21. 5.Coevolution

  22. 6.Extinction

  23. Gradual extinction • Western Black Rhino • IUCN, 2013 (last seen 2006)

  24. Mass extinction

More Related