1. DNA Methylation + Epigenetics

2. Methylation Shuts off Gene Expression

3. DNA Wrapping/Acetylation

4. Why is This Important?
Differentiation of cells
Environmental effects on gene expression
Heredity/Evolution?

5. Differentiation of Cells
Every cell in your body (except sperm/egg) have the same DNA!

6. Important in Producing Stem Cells

7. Environmental Effects
Twins become different over time
Experience matters!

9. Epigentics and Inheritance
Positive and negative effects
Appears to be a 3 generation effect

10. Epigenetics and Health
We are almost certain methylation is important in causing cancer
But also likely involved in many other diseases

11. Epigenetics and Evolution?
Nature can not only select which genes become common but which gene expression patterns are passed on?

12. Rest of Week
Tomorrow – Practice Test
Wednesday – Review day/Jeopardy
Thursday – Unit Test
Friday – Evolution!