Exam #1 W 2/10 in class (bring your cheat sheet) Review T 2/9 from 6-8pm in WRW 102 - PowerPoint PPT Presentation

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Exam #1 W 2/10 in class (bring your cheat sheet) Review T 2/9 from 6-8pm in WRW 102

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  1. Exam #1 W 2/10 in class(bring your cheat sheet)Review T 2/9 from 6-8pmin WRW 102

  2. Is this all of your DNA?

  3. Mitochondria have their own DNA.

  4. Both Mitochondria and Chloroplast have DNA

  5. Only the egg provides mitochondria to the offspring. Fig 47.3 mitochondria

  6. Human Life Cycle In femalesMom provides 50.000275% and Dad provides 49.999825% of DNA to offspring. … because Mom provides 100% of mitochondrial DNA

  7. A few diseases are caused by mutations in mtDNA

  8. Pedigree of a mitochondrial disease:(black signifies affected individual) Which shape represents females?

  9. Pedigree of a mitochondrial disease: Males and females may be affected by a disease coded on mtDNA, but only females pass it on.

  10. Mitochondrial DNA comparisons can be used to trace ancestry:

  11. During the Bolshevik revolution, the Tsar’s family was captured and executed. Tsar’s Family

  12. There are many stories about what happened to their youngest daughter Anastasia Tsar’s Family

  13. Anna Anderson, claimed she was Anastasia

  14. Anna Anderson claimed she was Anastasia, but tests of her mtDNA and one of Anastasia’s maternal relatives did not match.

  15. For more info check out: http://en.wikipedia.org/wiki/Grand_Duchess_Anastasia_Nikolaevna_of_Russia Or the book “Seven Daughters of Eve” by Bryan Sykes

  16. Fig 14.8 Phenotype Genotype

  17. Approximate position of seed color and shape genes in peas Gene for seed color y Y r R Gene for seed shape Chrom. 1/7 Chrom. 7/7

  18. The inheritance of genes on different chromosomes is independent:independent assortment Fig 15.2

  19. Fig 14.8

  20. Fig 15.9 Some crosses do not give the expected results

  21. Fig 15.9 Heterozygous wild typegray w/ normal wings b+ b vg+ vg Homozygous wild typeblack w/vestigial wings bb vg vg

  22. Fig 15.9 =25% 42% 41% 9% 8%

  23. Does this show recombination? d/d M2/M2 D/d M1/M2 D/d M2/M2 d/d M1/M2 D/d M1/M2 d/d M2/M2

  24. Does this show recombination? d/d M2/M2 D/d M1/M2 D/d M2/M2 d/d M1/M2 D/d M1/M2 d/d M2/M2 arental ecomb.

  25. Why fewer recombinants than parentals? Fig 15.9 =25% 42% 41% 9% 8%

  26. These two genes are on the same chromosome

  27. These two genes are on the same chromosome,and close together.

  28. Homologous pair of chromosomes

  29. Fig 15.10

  30. Fig 15.11 By comparing recombination frequencies, a linkage map can be constructed = ? m.u.

  31. Fig 15.11 By comparing recombination frequencies, a linkage map can be constructed = 17 m.u.

  32. Fig 15.12 Linkage map of Drosophila chromosome 2

  33. Only 2 of the 4 chromosomes can cross-over. Recombinants

  34. Fig 15.12 Linkage map of Drosophila chromosome 2

  35. Recombination is not completely random. physical distance linkagemap Yeast chromosome 3

  36. Exam #1 W 2/10 in class(bring your cheat sheet)Review T 2/9 from 6-8pmin WRW 102