1. Warm-up (11/17 & 11/18) 1.What happens in replication? 2.What happens in transcription? 3.What happens in translation? 4.What happens in mitosis? 5.What % of offspring will be tall if a tall plant (Tt) is crossed (mated) with a short plant (tt)?

2. Objectives I understand the difference between mitosis and meiosis I understand how meiosis relates to heredity I can predict the possible genotypes and phenotypes of offspring from 2 parents

3. Homework Genetics assignment #1 and #2 Genetics Brochure due December 14 (Tuesday) or December 15 (Wednesday)

4. Mitosis/Meiosis

5. MITOSIS 2N ALL CELLS AND DNA IDENTICAL

6. Mitosis Occurs in Somatic (body) cells Used in growth & repair of body cells, Asexual reproduction

7. Starts with Parent cell – (Diploid - 2N) – has both sets of chromosomes

8. Ends with 2 identical daughter cells (diploid)

9. Cells will turn into this Daughter cells will turn into fully functional body cells (liver cells, muscle cells, etc.)

10. Chromosome Number Stay the same (46 chromosomes in humans)

11. Genetic material Stays the same (identical)

12. Problems Uncontrolled growth or division causes cancer

13. Meiosis 2N 1N Division I Division II 4 NEW GENETICALLY DIFFERENT CELLS

14. Meiosis Occurs in Gametes (sex cells) Used in Sexual reproduction

15. Starts with Diploid cell (2N)

16. Ends with 4 Haploid (1N) cells – 1 set of chromosomes Called a Reduction division (2N to 1N)

17. Cells will turn into this Males – 4 sperm Females – 1 egg and 3 polar bodies

18. Chromosome Number Divides in half (46 to 23 chromosomes) Sperm (23) and egg (23) combine to form a zygote (46) during fertilization This ensures chromosome # is right

19. Genetic material Genetic Variation caused by crossing over – chromatids overlap, break apart, and reattach to form new combinations of DNA

20. Problems Zygotes with wrong chromosome # usually will not survive

21. Today How is the cell cycle regulated? What happens when it is not regulated? How do chromosomes move? Review mitosis steps AP Lab 3 part A

22. MitosisMeiosis PurposeGrowth,RepairSexual Reproduction Chromosome #2N to 2N2N to 1N # of cells produced 24 # of divisions12 Genetic Material Stays the sameVariation in gametes Where it occursSomatic cellsGametes

23. Cell Cycle Order Interphase Checkpoints

24. Chromosomes

25. Sister Chromatids Centromere Chromosome DNA Replication

26. MICROTUBULES DIPLOID

27. Sister Chromatids separate DIPLOID

28. Mitotic Divisions

29. Karyotypes Autosomes Sex Chromosomes

30. Meiosis Animation http://highered.mcgraw- hill.com/sites/0072495855/student_view0/ chapter28/animation__how_meiosis_work s.htmlhttp://highered.mcgraw- hill.com/sites/0072495855/student_view0/ chapter28/animation__how_meiosis_work s.html

31. DIPLOID REDUCTION

32. HAPLOID DIVISION

33. Sperm and Egg Development What types of chromosomes Are in there?

35. Genetic Variation

36. Know Tetrad Synapsis Chiasmata Crossing Over

37. GENES

39. Chromosomes

40. Sister Chromatids Centromere Chromosome DNA Replication

41. CHROMOSOMES

43. SEED SHAPE SEED COLOR Homologous CHROMOSOMES LETTERS are ALLELES

44. THREE DIFFERENT POSSIBILITIES FOR A GENE HOMOZYGOUS DOMINANT HOMOZYGOUS RECESSIVE HETEROZYGOUS DOMINANT

45. http://highered.mcgraw- hill.com/sites/0072495855/student_view0/chapte r2/animation__comparison_of_meiosis_and_mit osis__quiz_1_.htmlhttp://highered.mcgraw- hill.com/sites/0072495855/student_view0/chapte r2/animation__comparison_of_meiosis_and_mit osis__quiz_1_.html http://highered.mcgraw- hill.com/sites/0072495855/student_view0/chapte r28/animation__how_meiosis_works.htmlhttp://highered.mcgraw- hill.com/sites/0072495855/student_view0/chapte r28/animation__how_meiosis_works.html http://highered.mcgraw- hill.com/sites/0072495855/student_view0/chapte r28/animation__stages_of_meiosis.htmlhttp://highered.mcgraw- hill.com/sites/0072495855/student_view0/chapte r28/animation__stages_of_meiosis.html

46. MEIOSIS 4 CELLS WITH ‘R’ ALLELE FOR THIS GENE

47. MEIOSIS 4 CELLS WITH ‘R’ ALLELE FOR THIS GENE

48. MEIOSIS 4 CELLS WITH ‘R’ ALLELE FOR THIS GENE

49. Terms you need to know Homozygous – have the same alleles (TT or tt) – also known as purebred Heterozygous – have different alleles (Tt) –Also known as hybrid Genotype – the type of alleles that an individual has for a particular gene (Ex. TT, Tt, or tt) (written as letters) Phenotype – the physical expression of that gene (Ex. Tall or short) (written as words) Dominant – an allele (T) that overshadows the other Recessive – an allele (t) that is hidden when in the presence of the dominant allele

50. Rest of Class Look over test Turn back in to back counter Finish Assignment 1 and 2 of genetics package