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Genetics and Heredity Part III

Genetics and Heredity Part III. Every path has its puddle. English proverb. Today’s Agenda. Dihybrid crosses Incomplete dominance Codominance Polygenic. Dihybrid SetUp PpSs X PpSs. Dihybrid SetUp PpSs X PpSs. PS. Dihybrid SetUp PpSs X PpSs. PS. Ps. Dihybrid SetUp PpSs X PpSs. pS.

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Genetics and Heredity Part III

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  1. Genetics and Heredity Part III Every path has its puddle. English proverb

  2. Today’s Agenda • Dihybrid crosses • Incomplete dominance • Codominance • Polygenic

  3. Dihybrid SetUp PpSs X PpSs

  4. Dihybrid SetUp PpSs X PpSs PS

  5. Dihybrid SetUp PpSs X PpSs PS Ps

  6. Dihybrid SetUp PpSs X PpSs pS PS Ps

  7. Dihybrid SetUp PpSs X PpSs ps pS PS Ps

  8. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  9. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  10. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  11. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  12. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  13. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  14. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  15. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  16. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  17. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  18. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  19. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  20. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  21. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  22. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  23. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  24. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  25. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  26. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  27. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  28. Dihybrid SetUp PpSs X PpSs pS PS Ps ps PS Ps pS ps

  29. 9:3:3:1 pS PS Ps ps PS Ps pS ps

  30. Obj. 9 Incomplete Dominance • Definition: • A condition in which a trait in an individual is intermediate between the phenotype of the two parents because the dominant allele is unable to express itself fully.

  31. Example of Incomplete Dominance: • Red snapdragon X white snapdragon • All offspring are pink snapdragons

  32. Codominance • Definition: a condition in which both alleles for a gene are fully expressed. • Ex. Blood Types

  33. Polygenic • Definition: a characterisitc of an organisms that is determined by many genes • Ex. Eye color, height, weight

  34. Multiple Alleles • Genes with three or more alleles • Example: Blood groups • A = AO, AA • B = BO, BB • AB = AB • O = OO

  35. Practice Problems

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