An example of modern forensics evidence is the use of DNA fingerprints. Sources of DNA include blood‚ hair‚ semen‚ saliva‚ bone and tissue. Each person has a unique DNA fingerprint. A DNA fingerprint is the same for every cell‚ tissue‚ and organ of a person. It cannot be altered by any known treatment. Consequently‚ DNA fingerprinting is rapidly becoming the primary method for identifying and distinguishing among individual human beings . An additional application of DNA fingerprint technology is the diagnosis of inherited disorders in adults
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Alyssa Caparelli Organic Chemistry 12A Professor Alston October 28‚ 2014 Isolation of Chlorophyll and Carotenoid Pigments from Spinach Purpose The purpose of this experiment was to isolate ß-carotene‚ chlorophyll-A‚ and chlorophyll-B from spinach using column chromatography. Spinach was dehydrated using ethanol‚ and the pigments were extracted with dichloromethane. The spinach extracts were dried using CaCl2. Then‚ the solid pigments were run through a column using a non-polar solvent‚ hexane
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Introduction DNA (Deoxyribose Nucleic Acid) is a nucleic acid that has many names‚ each representing the phases that it undergoes (chromosomes‚ chromatin‚ genes/alleles); it resides in the nucleus (bound by 2 *phospholipid bilayers) of almost every cell in the body (red blood cells being an exception). DNA (your genotype) is double stranded and is responsible for replicating (from 46 to 92) during Interphase‚ so that mitosis can make new cells‚ repairing and allowing for growth in the body. It is
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terms (excluding inflation) sales will slip very slightly. Q: Which segments have most potential for growth? A: There is a clear divide between two promising segments – liquid soaps and shower gels – and two less buoyant ones – bar soaps and bath additives. Mintel expects liquid soap and shower gel
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Materials and Methods Growing the G Strain and Preparing the GCE (rGFP Crude Extract): To grow the bacterial culture‚ use 10 ml of liquid LB growth media for incubation. 500 ml of the bacterial culture is allowed to grow overnight at 37°C. It is later shaken vigorously to increase the OD600 to 0.5‚ which means that time equals zero. At time zero‚ 1 mL of the culture is transferred into a 1.5 mL centrifuge tube and centrifuged for 5-10 minutes to obtain a pellet. The supernatant should be discarded
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Forensic DNA Evidence DNA has become one of the most accurate tools used in law enforcement in determining guilt or innocence. DNA is different in all people it is our “genetic blueprint.” DNA is so significant to law enforcement because DNA left at a crime scene can be collected and tested to see if there is a match. It is unique because it ensures accuracy and fairness. The initial use of DNA began in Britain in 1986; the FBI used it for the first time in the United States two years
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Title: Mitosis and amount of time spent in each phase. Introduction: The cycle of a cell roughly doubles it volume of cytoplasm and duplicates its genetic information i.e. replicated DNA. Then it divides the genetic information equally into two daughter nuclei. The cell cycle can be divided into two phases interphase and mitotic phase. The time spent in these phases depends upon the type of cell and its particular developmental or physiological state. Cells comprising rapidly growing tissues
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6 November 2012 SUBJECT: Lab Report Analysis This memo proposes the observations and claims I collected from reviewing three different lab reports. Three fields of study are composed within this memo that includes Electrical Engineering‚ Environmental Engineering‚ and Petroleum Engineering. “Electrical Filters‚” (Electrical)‚ written by Joe Schmoe‚ is a lab report made by a student at a university. The College Board produced an environmental lab report named‚ “Monitoring Air Quality‚”
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Introduction: Through a series of labs‚ we were able to extract and isolate our mitochondrial DNA‚ nuclear DNA‚ and cellular DNA to then amplify a part of an intron in the tissue plasminogen activator gene (TPA) through Polymerase Chain Reaction (PCR) and run on an agarose gel to detect the presence or absence of a transposable element known as an Alu element. The main purpose of this experiment was to use our class as a population‚ to test whether or not we were in Hardy-Weinberg Equilibrium. The
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Samantha Meyer Lesson Plan 8/Reflection #8 SCIE 376 This week‚ I taught a lesson about fingerprinting to my students and it went extremely well. The students were highly attentive‚ every student participated‚ and based off of my assessment‚ every student fully understood the topic. My lesson this week aligned with the scientific and engineering practices 1‚ 2‚ and 4. Practice 1 is asking questions‚ practice 2 is developing and using models‚ and practice 4 is analyzing and interpreting data. My
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