The techniques associated with biotechnology have allowed for fairly widespread manipulation of food available for consumption. The idea of genetically modified foods has many Americans concerned about the safety of these foods
In your opinion, are the concerns well-founded?
Science can never prove anything, including 100% safety of any food. Despite this, almost 75% of processed foods in the United States contain ingredients from genetically modified organisms. On the surface, it would appear that these foods are safe, considering most people have consumed the products and are in good health. Of course the reality is we will not know until more testing is done and the products have been used for a long enough period of time. Those with serious reservations have already pointed to changes in the health of individuals, with the rise of diseases such as diabetes and the prevalence of overweight children and adults in the United States. These arguments, however, look for a single cause to such changes in human health, when in reality, many factors contribute to such conditions. Concern about safety is not unfounded, but should not be blown out of proportion.
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Pol III holoenzyme of E. coli is composed of:
A. three Pol III cores, two ? clamps, two clamp loaders. B. two Pol III cores, two ? clamps, and one clamp loader. C. two Pol III cores, two ? clamps, and two clamp loaders. D. three Pol III cores, two ? clamps, one clamp loader. E. three Pol III cores, three ? clamps, one clamp loader.
The following are all products of the light-independent reactions EXCEPT for
a. O2 gas. b. ADP. c. NADP+. d. G3P. e. RuBP.
Why is carbon dioxide considered to be one of the most important of the greenhouse gases?
A. It cycles through the carbon cycle, driving all life on earth. B. It is able to reflect infrared energy, preventing earth from heating up too much. C. It absorbs other gases, preventing them from becoming greenhouse gases also. D. It is able to absorb infrared energy, allowing earth to be warm enough to support life.
Which of the following is false about type 2
diabetes? a. It has a genetic basis. b. It can result from insulin shock. c. Obesity and sedentary lifestyles put one at increased risk. d. Target cells do not respond normally to insulin. e. Rates are currently soaring, and the disease is now a serious public health issue.