1. Find a mate with your nose? 1. Discuss the function of MHC markers 2. Identify the key findings in the research paper

2. MHC Markers Genes for these proteins are found on chromosome 6 Genes for these proteins are found on chromosome 6 There are many genes that code for There are many genes that code for these markers These are your “self” markers These are your “self” markers

3. MHC Markers There are two main types There are two main types Class 1-made by all body cells Class 1-made by all body cells Class 2-made by T cells, B cells, macrophages Class 2-made by T cells, B cells, macrophages

4. Anatomy of a Cell

5. Cell Membrane

6. MHC Class I markers

7. MHC Class II markers

8. What do MHC markers have to do with mate selection? People with similar MHC markers could be related… People with similar MHC markers could be related… Certain MHC combinations are superior Certain MHC combinations are superior Parasite driven selection? Parasite driven selection?

9. What were the findings in the experiment? Women chose men with different MHC genes Women chose men with different MHC genes Women were better able to discriminate the sex of the T shirt wearer Women were better able to discriminate the sex of the T shirt wearer Women on the pill chose men who had similar MHC markers Women on the pill chose men who had similar MHC markers

10. http://www.youtube.com/watch?v=pEmX8Ri m-hs&feature=related http://www.youtube.com/watch?v=pEmX8Ri m-hs&feature=related