1. Thursday, December 10, 2015 Day 2 Science Starters Sheet 1. Please have these Items on your desk. Note book Science Starter: Two Vocabulary words: 1.Anaphase 2. Telephase Agenda

2. 1.Anaphase: Centromeres split Two chromatids separate Each chromatid becomes a new chromosome. New chromosomes move to opposite ends of cells. Cell stretches out as the opposite ends are pushed apart. 2.Telophase: Chromosomes begin to stretch out. New nuclear envelope forms around each region of the chromosomes.

3. T.O.C. Update Page 81 12/11/15 Meiosis Notes Write Yellow writing in your notes

4. MEIOSIS

5. Meiosis is the type of: Cell division by which eggs and sperm are produced. One parent cell produces four daughter cells. Daughter cells have half the number of chromosomes found in the original parent cell

6. Meiosis During meiosis, DNA replicates once, but the nucleus divides twice.

7. Meiosis I First division of meiosis

8. First Division of Meiosis Same as the mitosis. Cell divides into 2 cells with the same genetic information

9. Prophase I http://everyschool.org/u/logan/cellreproductionx/rogersa/research/meiosis.html

10. Prophase I http://everyschool.org/u/logan/cellreproductionx/rogersa/research/meiosis.html

11. Metaphase I http://everyschool.org/u/logan/cellreproductionx/rogersa/research/meiosis.html

12. Telophase I http://everyschool.org/u/logan/cellreproductionx/rogersa/research/meiosis.html

13. Meiosis Second Division of Meiosis

14. Prophase 2: DNA does not replicate. Metaphase 2: Chromosomes line up at the center of the cell Anaphase 2: Centromeres divide and sister chromatids move separately to each pole. Telophase 2: Cell division is complete. Four haploid daughter cells are formed.

15. Definition Haploid - Having a single set of unpaired chromosomes, as in a germ cell, such as an egg or sperm.

16. Prophase II http://everyschool.org/u/logan/cellreproductionx/rogersa/research/meiosis.html

17. Metaphase II http://everyschool.org/u/logan/cellreproductionx/rogersa/research/meiosis.html

18. Telophase II http://everyschool.org/u/logan/cellreproductionx/rogersa/research/meiosis.html

19. Meiosis http://www.biosci.uga.edu/almanac/bio_103/notes/apr_3.htmlhttp://www.biosci.uga.edu/almanac/bio_103/notes/apr_3.html.

20. Meiosis Animation http://www.rothamsted.bbsrc.ac.uk/notebook/courses/guide/movie/meiosis.htm

21. Differences in Mitosis & Meiosis Mitosis –Asexual –Cell divides once –Two daughter cells –Genetic information is identical –Creates regular cells Meiosis –Sexual –Cell divides twice –Four haploid daughter cells –Genetic information is different –Only creates sex cells E.g. sperm and eggs

22. Comparison Animations http://www.pbs.org/wgbh/nova/baby/divi_flash.html