1. Objectives Check HW: Drawing Mitosis and Meiosis Review idea of Karyotypes in chromosomes via Powerpoint With time left review notes and pictures on Mitosis and Meiosis HW: Study for Quiz on Wednesday We will review tomorrow, remember to use Kahoot.it online

2. Karyotypes Video on Genetics and Karyotypes https://www.youtube.com/watch?v=rIXhkEjPb D0 https://www.youtube.com/watch?v=rIXhkEjPb D0

3. Proverb of the Day “There’s no better way to overpower a trickle of doubt than with a flood of naked truth.” – House of Cards

4. Karyotypes The study of inheritance patterns in humans Oculocutaneous albinism

5. What each of the human chromosomes look like

6. Karyotype: A photomicrograph of chromosomes arranged according to a standard classification

7. In other words… Chromosomes are digitally arranged so that they are matched with their homologue or “ partner ” chromosome. Homologue chromosomes are the same size, shape, and carry the same genes, and one is inherited from each parent. They are numbered according to size.

8. Sex determination with karyotype This karyotype has 23 exact pairs, which means the person is female. Note that #23 chromosomes are both X.

9. Normal human male Note that #23 chromosomes are X and Y.

10. Is this person female or male?

11. Trisomy 21 Abnormality shown in karyotype Note that there are three copies of #21 chromosome. This person has Down Syndrome.

12. Photos of Down Syndrome patients from the National Down Syndrome Society

13. Correlation between mother ’ s age and Trisomy 21 incidence

14. Monosomy X Abnormality shown in karyotype Note this person only has 1 copy of the X chromosome. This female has Turner ’ s syndrome.

15. Turner’s Syndrome

16. XXY Male (Extra X)

18. How are DNA samples obtained for karyotypes?

19. Amniocentesis: obtaining amniotic fluid which has cells from the fetus

20. Start Reviewing For Test My notes are online under assignments New Kahoot game on meiosis added to my username, directions are online under activities Make sure to review Kahoot ;) on your own