Should we Grow GM Crops?
1. What is a GM Crop?
A GM crop is a crop that has been genetically modified and sent to stores. Some will be labeled "organic" when sometimes it isnt purely organic.
2. List 2 arguments FOR the growing of GM crops
Some geneticist will say that, genetic modification couldn't be more natural. Plants and animals genetically modify themselves all the time. That's the basis of evolution. We've been genetically modifying plants and animals for years, it's the basis of agriculture
Biotech firms hold that every GM food crop is thoroughly tested for possible health effects. So we can make sure that
3. List 2 arguments AGAINST the growing of GM crops.
Raising GM crops is an uncontrolled experiment, with unknown consequences for surrounding ecosystems. One of their greatest worries is that GM crops could harm other wildlife.
GM seed firms invest heavily in research and development.
Engineer a Crop
4. Practice this simulation until you get the largest ears of corn. How many times did it take you?
It took me 5 tries.
What’s for Dinner?.
5. List two foods and desribe how they are being modified.
Petunias are being genetically modified for color and pesticide resistance. A variety of fruits are being modiified for modified sugar content and pest resitance.
Viewpoints
Do you think food should be labeled if it has been genetically modified? Why or Why not?
Yes, I do becasue people should have the right to know what they are eating and how it has been modified. You wouldn't want to eat food and not know where and how it was modified. It could have different impacts on people, because people could only want to eat organic food, and then they realize that the food they're eating is not organic. There could be people out there that are strongly against genetically modified food and could become furious if they find out that the food that was labled organic isn't organic at all.
Thursday, December 16, 2010
Monday, December 6, 2010
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.
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.
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