DNA bender: Cren7 & Sul7 DNA benders can introduce a bend in the DNA (Luijsterburg et al.‚ 2008). Many bends in the DNA automatically provide compaction of the DNA. Two important DNA bending proteins in crenarchaea are Cren7 and Sul7 (Driessen et al.‚ 2013). They are similar in structure‚ but they have different DNA binding regions (Zhang et al.‚ 2015). Cren7 and Sul7 can be methylated at several lysine residues (Guo‚ 2007). This PTM might be to regulate gene expression (Feng et al.‚ 2010)‚ although
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science plays an extreme role. DNA is the abbreviation for Deoxyribonucleic acid. It is present in all organisms‚ whether it is a bacteria‚ bird or mammal. DNA is a long molecule that carries a particular genetic data; it is located in every cell in a human body except the red blood cells. DNA profiling is easy acquire and very accurate in identifying a person. There are many different ways a forensic expert or a police officer can get DNA samples. In criminal cases‚ DNA samples help solve many crimes
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radically expanded. Technological developments such as DNA profiling and how investigations are conducted has significantly improved humankinds ability to investigate and solve crimes through everyday science. The use of DNA evidence in criminal investigations has helped law enforcement identify criminals and solve difficult crimes. DNA can also be used to clear the accused and free people who are wrongly accused or convicted of crimes. DNA was first described by scientists Francis Crick and James
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acid (DNA) collection and its relationship to solving crimes. The collection of DNA is one of the most important steps in identifying a suspect in a crime. DNA evidence can either convict or exonerate an individual of a crime. Furthermore‚ the accuracy of forensic identification of evidence has the possibility of leaving biased effects on a juror (Carrell‚ Krauss‚ Liberman‚ Miethe‚ 2008). This paper examines Carrells et al’s research along with three other research articles to review how DNA is collected
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DNA Extraction Lab 1/17/14 Purpose : This lab was conducted in order to show and analyze the way DNA is extracted. Hypothesis: If the lab is conducted properly then we should be able to view a visible amount of DNA from the strawberry and detergent mixture. Variables: The independent variable in this experiment is the strawberry mixture while the dependent
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Recent Advances on DNA based method in Food Analysis Food Analysis From the introduction of the application of science in the study of food and consumption‚ it has been observed that analysis played a key role in the Food industry. From determining composition to the presence of adulterants‚ food analytical methods are essential in maintaining quality and integrity of food products for consumer use. The Speed and Accuracy of the results are crucial in choosing a method for analysis. Methods
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How DNA Is Unwound So That Its Code Can Be Read DNA can be found in every living organism. “[It is] the material inside the nucleus of cells that carries genetic information” (Your Genes‚ Your Choices: Glossary). The genetic information is consisted of two strands twisted together and is encoded in the sequence of nucleotides‚ which are deoxyribose‚ phosphate group‚ and nitrogen bases. This genetic information is also heritable traits which can be carried onto future offsprings. In an article
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BMS 424 Chapter 1 DNA‚ RNA‚ Historical Experiments & Structures Frederick Griffith Experiments with Streptococcus pneumoniae S. pneumoniae comes in two strains‚ smooth and rough strains S Smooth : Secrete a polysaccharide capsule; Protects bacterium from immune system of hosts; Produce smooth colonies on solid media. R Rough : Unable to form capsule; Produce colonies with a rough appearance. Griffith conducted experiments in 1928 using two strains of S. pneumoniae: type IIIS and type IIR :
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Procedure 2: DNA Extraction from Cheek Cells Materials: Water‚ Clear Dish Soap‚ Table Salt‚ Isopropyl Alcohol (70%) or Ethanol‚ Food Coloring 1. To 200 Ml drinking water add two teaspoons of salt 2. Gargle the salt water for 1 minute. 3. Spit the gargled water into a beaker (or new cup). Now your cheek cells are suspended in the salt water. 4. Gently stir the salt water with one drop of soap (try to avoid air bubbles) 5. In a separate beaker (or cup)‚ mix 20 ml isopropyl alcohol and 1-3 drops
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ELECTROPHORESIS OF EXTRACTED DNA 0.5% AGAROSE GEL Group partners: 1) HALIMATUN SAADIAH BT MOHD BUSTAMAM 2) NUR FARHANA BT AHMAD SOPIAN 3) FATIN NUR ASYIQIN BT ABD TALIB 4) UMMU AFIQAH BT HASSAN 5) NABIHAH BT MD NAWAWI Date of experiment: 8th October 2012 Date of submission: 15th October 2012 TITLE: GEL ELECTROPHORESIS OF EXTRACTED DNA 0.5% AGAROSE GEL DATE: 8th OCTOBER 2012 OBJECTIVE * To study measure the size of base pair of DNA RESULT Lane from extremely
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