Name: Mugabe Rodrigue Class: Grade 11B Subject: Biology Topic: DNA Extraction From Onion Date: 20/1/2014 Introduction: DNA‚ or deoxyribonucleic acid‚ is the hereditary material in organisms. Nearly every cell in an organism has the same DNA. Most DNA is located in the cell nucleus.The information in DNA is stored as a code made up of four chemical bases: adenine (A)‚ guanine (G)‚ cytosine (C)‚ and thymine (T). The order‚ or sequence‚ of these bases determines the information available for
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Should all people convicted of a crime have their DNA fingerprints stored on a database?\ A DNA fingerprint is the same for every cell‚ organ and tissue in an organism. DNA fingerprinting has many uses‚ some of which include providing the evidence needed to solve criminal investigations‚ determining genetic relationships and solving paternity disputes. DNA fingerprinting has many benefits in the use of criminal investigations as it can provide the evidence to solve crimes and current mysteries
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Misael Acosta Photosynthesis Lab Report Ms. Rocha AP Biology 4th Period II. Intro/Background 1. In order for oxygen to be present photosynthesis must occur. Photosynthesis takes in light and CO2‚ and through a series of steps produces oxygen. Photosynthesis can be measured by either the disappearance of substrate or the accumulation of product. Examples include the production of O2 or the consumption of CO2. All the oxygen within the leaf disks will be removed before being placed
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14-01-05 Cellular Respira8on Upcoming events: L3.1 {cell resp} – Jan 16/17th Quiz Jan 22/23st (in lieu of write-up) Mitochondrial Cytoplasm
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because they contain one active site on their surface that enable the substrate to bind to the enzyme and form the enzyme substrate complex and then release the products. The principal function of enzymes is to increase the rate of the chemical reactions. Enzymes have a set of conditions at which they work perfectly; this is known as optimal condition. Fungal and bacterial amylase are the enzymes that we going to study for their ability to break down starch. In order to determine how temperature
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Osmosis Lab Report by Evan Gerber Claire Cambron First Lab Report Wednesday 10:30am February 20‚ 2013 Theresa Gburek Abstract The major objective of the experiment was to test the effect of the concentration gradient on the diffusion rate. It was hypothesized that the greater the stronger the concentration gradient‚ the faster the rate of diffusion would be. To test this‚ dialysis tubes were submerged in different concentration fructose solutions. We weighed the tubes at specific
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humans and can be used as a way to distinguish between males and females. Gender determination of a human has important applications in forensic science‚ prenatal diagnosis‚ etc. This can be done by Polymerase Chain Reaction (PCR) followed by gel electrophoresis. The presence of two bands of DNA indicates that the sample is from a male while the presence of one band of DNA indicates that the sample is from a female (sasaki and shimokawa‚ 1995). In this experiment‚ Chelex was used to extract nucleic
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Lab Report Title: * Color reaction of starch when mixed with Iodine solution Introduction: Statement: * How would the varying solutions react when introduced with the Iodine solution? Hypothesis: * If a solution is rich in starch then it will react with iodine solution and change to a bluish-black color (looks Brown) Materials: Items: * 8 test tubes‚ pipet‚ iodine‚ onion juice‚ potato juice‚ sucrose solution‚ glucose solution‚ distilled water‚ fructose solution‚ starch solution
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the large intestine where it is broken down by bacteria. The lactose disaccharide is composed of the monosaccharides glucose and galactose. Lactase in an enzyme that catalyzes the breakdown of lactose into its two monosaccharides in a hydrolysis reaction so they can be absorbed through the intestinal mucosa membrane (Olds & Sibley‚ 2003). For the majority of mammals‚ lactase activity is significantly reduced after being weaned from their mother’s milk. Since most mammals do not continue
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BIO 211 Lab Section 11 February 15‚ 2012 Effects of Temperature on Enzymatic Activity Abstract Temperature is a measure of kinetic energy. As this movement increases‚ collision rate and intensity‚ and therefore reaction rates‚ increase. This experiment was conducted to determine if there is a minimum temperature that increase kinetic energy and denature enzymes to slow enzymatic reactions or fail to catalyze them. The experimental results indicate an increase in temperature will increase reaction
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