Introduction A sample of DNA found in a crime scene was provided along with five suspects. Their DNA was then processed using restriction enzymes and Agarose Gel Electrophoresis. The objective of this lab was to match a criminals DNA to a crime scene using restriction enzymes EcoRI and Pstl with Agarose gel electrophoresis. Restriction enzymes cut DNA at a specific base pair site recognized by the enzyme‚ which then turns one single strand of DNA into many fragmented strands of DNA. EcoRI recognizes
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Discussion In this experiment‚ the molar mass of two volatile liquids – methanol and an unknown liquid – were calculated for through the Dumas Method. Initially‚ the sets of Erlenmeyer flasks with aluminum foil and rubber bands were weighed. Next‚ volatile liquids were placed in 125mL Erlenmeyer flasks and covered with aluminum foil‚ but small holes were made into the foil. The flask was then heated in a water bath until all of the liquid evaporated. The flask was then removed‚ and weighed again
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Apportionment Using the Hamilton Method Dawn Ambrose Argosy University- On-line MAT109 A01 Instructor: Marcus Vandiver Apportionment Using the Hamilton Method Using the Hamilton method of apportionment‚ determine the number of seats each state should receive. Using the numbers you just calculated from applying the Hamilton method‚ determine the average constituency for each state. Explain your decision making process for allocating the remaining seats. As can be seen in the chart above
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Molecular Modeling Exercise The purpose of the is lab was to practice modeling molecules and exploring the capabilities of the ChemOffice programs. The minimum energy was found for each of the three molecules tested and the strain energy at different dihedral angles was plotted. The first molecule‚ butane‚ was easily completed but amphetamine and U4EA caused some difficulty. The results of the last two were not very conclusive. INTRODUCTION The purpose of this lab was to explore the capabilities
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an area of low concentration. How quickly diffusion occurs is dependent on several factors‚ such as temperature‚ particle size‚ and the concentration difference on either side of the membrane. Testing the hypothesis relating to the effect of molecular weight to the diffusion rate‚ agar plate set-up was used to observe the diffusion of different substances. The methylene blue and potassium permanganate (KMnO4) was used and placed in the plate. Because the two substances have distinct colors‚ the measurement
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LIQUID CRYSTALS Introduction What are Liquid crystals ? Its History & Discovery Any of various liquids in which molecules are regularly arrayed like a solid crystal along one or two dimensions‚ but are free in the other dimensions as with typical liquids. Liquid crystals often display unusual and often manipulable optical properties such as anisotropic scattering. They can be divided into two classes‚ Thermo tropic(nematic‚ chiral nematic‚ and smectic.) and Lyotropic. Transitions to thermotropic
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in water using the method of solvent extraction‚ also known as liquid-liquid extraction‚ a method of separating two materials with different physical and/or chemical properties. Two methods of evaporation will be used to finally determine the concentration of impurity- one using an explosion-proof hot-plate‚ and one using a rotovap. III. Theory Fig. 1a+1b. Figure 1a shows how water and oil separate in the separatory funnel‚ while figure 1b shows the actual apparatus. Liquid-Liquid extraction
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Technology 100 (2009) 1192–1196 Contents lists available at ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech Optimization of culture conditions for hydrogen production by Ethanoligenens harbinense B49 using response surface methodology Wan-Qian Guo a‚ Nan-Qi Ren a‚*‚ Xiang-Jing Wang b‚ Wen-Sheng Xiang b‚ Jie Ding a‚ Yang You a‚ Bing-Feng Liu a a b State Key Laboratory of Urban Water Resource and Environment‚ Harbin Institute of Technology‚ Harbin
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4 Pages Write a paper answering the questions below using examples from the Dumas book and the course (but you MUST use the Dumas book as a resource). What does Dumas’ decision to take an American name suggest about her feelings toward her adopted country? How does her dual identity enable her to see how Americans "really" feel about Iran? Dumas’ husband‚ François‚ experiences life as an American immigrant much differently than does Dumas. What do you think accounts for Americans’ biases in
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MOLECULAR ELECTRONICS INTRODUCTION Molecular electronics (sometimes called moletronics) is a branch of applied physics which aims at using molecules as passive (e.g. resistive wires) or active (e.g. transistors) electronic components. The concept of molecular electronics has aroused much excitement both in science fiction and among scientists due to the prospect of size reduction in electronics offered by such minute components. It is an enticing alternative to extend Moore’s Law beyond the
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