Epigenetics Let’s go to the video! Youtube link – 13:39 – 27:04 1. What is epigenetics? 2. How is the DNA changed? 3. Why would these changes take place? 4. What are some examples of epigenetics? Also consider using http://www.youtube.com/watch?v=JTBg6hqeuTg
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Epigenetics Let’s go to the video! Youtube linkYoutube link – 13:39 – 27:04 1. What is epigenetics? 2. How is the DNA changed? 3. Why would these changes.
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EpigeneticsLet’s go to the video!Youtube link – 13:39 – 27:04
1. What is epigenetics?
2. How is the DNA changed?
3. Why would these changes take place?
4. What are some examples of epigenetics?
Also consider using http://www.youtube.com/watch?v=JTBg6hqeuTg
7. This link describes the connection between nurture and gene expression - Do “Lick Your Rats” – “Investigate” all 4 sections first!- Then choose “Lick a rat pup”).
What is the connection between how the mothers treated their pups and the pups’ genes?
8. The research presented in this article is used as evidence to support epigenetics. How does environment play a role in gene expression in this article?
9. The research presented in this article is used as evidence to support epigenetics. What surprising results did they find in studying the families of Norrbrotten, Sweden? (Here’s a link to a more detailed version).
GRgene
A T A G C A
(no –CH3)
ON
Stressprotein
GRprotein
GRprotein
Digested stress protein
NOSTRESS
GRgene
A T A G C A OFF
No GRprotein
Stressprotein
STRESS!
CH3
What causes a gene to be methylated or not?
1. Nurture – Mouse mothers; GR gene
2. Nutrition – Agouti mice; yellow and obsese vs. brown and skinny
3. Chemicals – BPA in water bottles
4. Your own body – ESC’s turning on/off genes to become different cell types