Epigenetics and the environment

1 and 2. Twins have the exact same genome when they are fertilized. At birth they look almost completely identical. The older they grow up you will start to be able to see changes. Some of this has to do with diet, physical activity, exposure to toxins, stress, and their environment.. Once the twins are well into adulthood the epigenetic tags are in very different places.

3. Imprinted genes are genes whose expression is determined by the parent that contributed them.

4. I run about 2 miles Monday though Friday for PE. Not 2 miles everyday if you think that. I try to eat as healthy as I can. I limit myself on the amount of junk food I consume. I don't have much stress unless there is a big test that week or a ton of stuff that I need to do whether it's schoolwork or just anything out of school that consumes my time that I need to do. So depending on how each of these factors change my genome it could be very different from someone else. If I had to pick one of those factors that I think would affect my genome, I think it would be my exercise.

5. A high nurtured pup will be more calm that low nurtured pups. The high nurtured ones will quickly relax after stress.

6. The mothers licking makes the GR genemmore active inside the pup than a low nurtured pup. Because of the high activity of the GR gene the pup will be able to relax much more quickly after stress than the other pups.

7. The cortisol responds to the GR gene and binds to it, causing the cell to release calming cells. Because of the more activity with GR the cortisol can respond quicker and relax the pup faster. Since the low nurtured pup doesn't have very many GR genes the cortisol cant respond as fast and produce calming cells quick enough for then pup to relax quickly.

8. If a human doesn't have an adult in their life to nurture them and tell them right from wrong those kids can go down the wrong path and get in trouble and just completely mess up their lives. With an adult figure or parent in someones life it will be easier for that person to make better choices and sometimes follow in their parents footsteps and maybe want to do what they do. A human won't be able to grow up correctly without a parent in their lives.

9. Any diet that is high in folic acid, B vitamins, and SAM nutrients can change our gene expression. It can change greatly in early development when we are first starting to get our gene expressions.

10. The mothers diet during pregnancy can greatly change the gene expression of the offspring inside. These changes can last from early development to far into adulthood. Depending on how much food the father had available could change the lifespan of the offspring. If he was obese the offspring would probably have a shorter lifespan than others.