1 / 28

Question!? 3/31

Question!? 3/31. The Great Irish Famine happened in 1845. How was genetics the issue?. The Results of Genetics. Evolution, Natural Selection, Mutants Ag Biology. Incomplete Dominance. Alleles for a trait are not completely dominant/recessive

bette
Download Presentation

Question!? 3/31

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. Question!? 3/31 • The Great Irish Famine happened in 1845. How was genetics the issue?

  2. The Results of Genetics Evolution, Natural Selection, Mutants Ag Biology

  3. Incomplete Dominance • Alleles for a trait are not completely dominant/recessive • Heterozygous is a different phenotype than either homozygous genotype • Example:

  4. Incomplete Dominance

  5. Codominance • Both alleles are expressed at the same time • Example: roan cattle

  6. Sex-Linked Traits • Chromosomes determine gender • XX = female • XY = male • The Y chromosome does not carry all the same genes the X chromosome does

  7. Sex-Linked Traits

  8. Sex-Linked Traits

  9. Pedigrees • Visual to represent inheritance of a trait

  10. Question!? 4/3 • If you cross XBXb with XbY How many will show the recessive trait?

  11. Pedigrees

  12. Mutants Mutant: Spiderman Form of Mutation: DNA replacement

  13. Mutants

  14. Mutants

  15. Mutants

  16. Mutants

  17. Mutants

  18. Mutants • Any change in the DNA sequence that also changes the protein it codes for

  19. Mutants • Body Cell Mutation: • Affects the cell it happens in, but not the whole individual • Reproductive Cell Mutation: • Can affect the whole new individual

  20. Mutants • Mutagen • Something that causes mutations • Examples: radiation, chemicals, high temperatures

  21. Mutants • Types of Mutations • Deletion A B C D F G H I • Insertion A B F C D E F G H I • Inversion A B C E D F G H I • Translocation A B F G E C D H I

  22. Mutants • Mutations and Evolution • One aspect of evolutionary theory relies on the idea that new traits are introduced by mutation that benefit individuals so that the trait is passed on to more offspring, until all members of the population have it

  23. Mutants Mutant: Spiderman Form of Mutation: DNA replacement

  24. Mutants Mutant: Wolverine Form of Mutation: Genetic

  25. Mutants Mutant: Hulk Form of Mutation: Mutagen (gamma radiation)

  26. Mutants Mutant: Rafael (TMNT) Form of Mutation: Mutagen (ooze)

  27. Mutants Mutant: Ruby-Red Grapefruit Form of Mutation: Mutagen (irradiation of reproductive cells)

More Related