DNA DIGESTION AND ELECTROPHORESIS In this experiment we will be doing a process called as DNA digestion or also known as restriction digest. A restriction digest is a procedure used in molecular biology to prepare DNA for analysis or other processing. It is sometimes termed DNA fragmentation‚ scientists Hartl and Jones describe it this way: This enzymatic technique can be used for cleaving DNA molecules at specific sites‚ ensuring that all DNA fragments that contain a particular sequence have the
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molecular level – Tutoring for biology Saturated fat vs. unsaturated fat Saturated fat has a lot of single carbon bonds. This makes them much straighter in shape and therefore easier to stack together. It’s called “saturated” fat because the molecule has the maximum amount of hydrogen atoms attached to it as possible. Unsaturated fat has double carbon bonds. Each double carbon bond means two less hydrogen atoms on the molecule. Unsaturated fat also is kinked at each double bond‚ disrupting the
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each point is not fully representative of the concept. Fats and Heart Disease (Units 10-12) 1. Define a fatty acid. 2. Define a triglyceride. 3. Compare and contrast a saturated and unsaturated fatty acid. 4. List food sources of unsaturated (mono- and poly) and saturated fats. 5. What is a sterol? Most common sterol is ______________. 6. List food sources of cholesterol. 7. List functions of fat in the body. 8. What are the two essential fatty acids
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Pancreatic cancer (PaCa) is a rapidly progressive and metastatic cancer with the lowest survival of any human cancer. Resistance of PaCa to current treatment regimens contributes to the dismal prognosis of this malignancy. There have been over ten phase II/III clinical trials aiming at curing PaCa during the past decade without significant success. In fact‚ a recent trial showing that Abraxane when combined with gemcitabine improved the overall patient survival by 1.8 months compared to gemcitabine
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LR was told he had metastatic pancreatic cancer‚ perhaps two months to live‚ and that neither chemotherapy nor radiation would be of benefit. But‚ instead of giving up and getting his affairs in order as the doctors suggested‚ he and his wife decided to take the situation into their own hands. They both began reading voraciously about cancer‚ nutrition‚ and alternatives. He began ingesting large numbers of supplements‚ including vitamin C‚ vitamin E‚ even pancreatic enzymes I first saw LR in December
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a. SATURATED FATS FROM NONSATURATED FATS An unsaturated fat is a fat or fatty acid in which there is at least one double bond within the fatty acid chain. A fat molecule is monounsaturated if it contains one double bond‚ and polyunsaturated if it contains more than one double bond. Where double bonds are formed‚ hydrogen atoms are eliminated. Thus‚ asaturated fat has no double bonds‚ has the maximum number of hydrogens bonded to the carbons‚ and therefore is "saturated" with hydrogen atoms. In cellularmetabolism
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How insulin effects digestion Insulin is a hormone that is produced in specialized cells in the islets of Langerhans‚ a part of the pancreas. The main role of insulin is to regulate the body’s use of sugars and other nutrients. The process is initiated during and immediately after the process of digestion breaks down carbohydrates into sugar molecules (including glucose) and proteins into amino acids. Right after a meal‚ glucose and amino acids are absorbed directly into the bloodstream
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Good Fats vs. Bad Fats In today’s society‚ eating healthy is bigger then ever with everyone trying to achieve his or her dream body. Any fitness or diet professional will tell you that the biggest way to alter your appearance is by changing your eating habits. One area of the diet that seems to confuse people when it comes to eating healthy is fat. For years fat in the diet is something that people always try to avoid and have always
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High-fat and Low-fat Diets Today‚ more people suffer from weight and health problems than people from twenty years ago. You may ask why is that‚ and what is the difference between us today and the people of the last generation? Well‚ one main difference is the high-fat and low fat foods that we eat. High-fat and low-fat diets can be the cause of half our problems. People today; choose some sort of diet to help their weight problems. But many people do not know what the bad intake of some foods
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their heads. Almost two years ago‚ I had to face this thought head-on when my mother’s cousin‚ Frankie‚ developed Pancreatic cancer. I remember when she called me on the phone to relay the news. "He’s done" was the first thing I said. Pancreatic cancer is the shittiest of the cancers because it’s the most fatal. There’s always a sliver of hope with other cancers‚ but not with Pancreatic. There’s no possibility of remission. There’s no silver lining. At that moment‚ I knew he was going to die. I finally
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