...police presents eyewitnesses with a lineup or an array of photos, with the purpose of identifying a suspect ("Eyewitness Identification," 2011). The process of eyewitness identification involves placing the subject or the photo of a subject among others not suspected of committing the crime, in order for the eyewitness to identify the perpetrator ("Eyewitness Identification," 2011). However, research indicates that eyewitness identification is often unreliable due to the human mind’s inability to remember events exactly as it happened ("Eyewitness Misidentification," n.d). As a consequence eyewitness testimony is known to be one of the greatest causes of wrongful convictions nationwide, playing a role in nearly 75% of convictions overturned through DNA testing ("Eyewitness Misidentification," n.d). One of the most notorious cases in the State of Florida regarding eyewitness misidentification is the case of James Bain, who was convicted to life in prison as a teenager in 1974 for raping and kidnapping a nine year old boy. The perpetrator who was described as a 17-18 year old teen with a mustache, bushy sideburns and with the name of “Jimmy” by the victim; was identified by the victim’s uncle as Jimmy Bain ("James Bain," n.d.). As a result of such identification, the uncle who was the assistant principal of the school where Bain studied, provided the police department with a photograph of Bain; which was put alongside five to six more photographs of potential suspects (“James...
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...GMO MYTHS AND TRUTHS An evidence-based examination of the claims made for the safety and efficacy of genetically modified crops Michael Antoniou Claire Robinson John Fagan June 2012 GMO Myths and Truths An evidence-based examination of the claims made for the safety and efficacy of genetically modified crops Version 1.3 by Michael Antoniou Claire Robinson John Fagan © Earth Open Source www.earthopensource.org 2nd Floor 145–157, St John Street, London EC1V 4PY, United Kingdom Contact email: claire.robinson@earthopensource.org June 2012 Disclaimer The views and opinions expressed in this paper, or otherwise published by EOS, are those of the authors and do not represent the official policy, position, or views of other organizations, universities, companies, or corporations that the authors may be affiliated with. GMO Myths and Truths 2 About the authors Michael Antoniou, PhD is reader in molecular genetics and head, Gene Expression and Therapy Group, King’s Cols: lege London School of Medicine, London, UK. He has 28 years’ experience in the use of genetic engineering technology investigating gene organisation and control, with over 40 peer reviewed publications of original work, and holds inventor status on a number of gene expression biotechnology patents. Dr Antoniou has a large network of collaborators in industry and academia who are making use of his discoveries in gene control mechanisms for the production of research, diagnostic and therapeutic products...
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...Deoxyribonucleic acid, commonly known as DNA, is the carrier of genetic information and the building blocks of all organisms. It is also the building block for both the defense and prosecution in criminal cases. This paper will explore the history of DNA profiling in the criminal justice system. While it is a common misconception that James Watson and Francis Crick discovered DNA in the 1950s, it was actually discovered in the 1800s. The molecule now known as DNA was first identified in the 1860s by a Swiss chemist called Johann Friedrich Miescher. Johann set out to research the key components of white blood cells, part of our body’s immune system. The main source of these cells was pus-coated bandages collected from a nearby medical clinic....
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...University of Phoenix Material What Is Life? Read each statement. Write a 100-word summary explaining how that media piece supports that statement and include reference citations. 1. Find a media piece—article, video, presentation, song, or other—related to the scientific method, creating hypotheses, or designing experiments. Include the link or reference citation for the piece and describe how it helped you better understand how the scientific method is used to create hypotheses and experiments. [pic] 2. Find a media piece—article, video, presentation, song, or other—that recognizes the fundamental concepts of chemistry in biology. Include the link or reference citation for the piece and describe how it helped you better understand how fundamental concepts of chemistry affect biology. [pic] 3. Find a media piece—article, video, presentation, song, or other—that describes the energy metabolism of cells. Include the link or reference citation for the piece and describe how it helped you better understand the energy metabolism of cells. [pic] 4. Find a media piece—article, video, presentation, song, or other—that compares structures and functions of different cell types. Include the link or reference citation for the piece and describe how it helped you better compare structures and functions of different cell types...
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...[pic] Biological control of Fusarium oxysporum f.sp. cubense using non-pathogenic F. oxysporum endophytes by Aneen Belgrove 动感之星 Submitted in partial fulfilment of the requirements for the degree of Magister Scientiae In the Facul ty of Natural and Agricultural Science University of Pretoria Pretoria Date October 2007 PROMOTOR: Prof. A. Viljoen CO-PROMOTOR: Dr. C. Steinberg I © University of Pretoria [pic] Declaration I, the undersigned, declare that the work contained in this thesis is my own and original work and that it has not previously in its entirety or part submitted for a degree to any other university. _________________________________ II [pic] TABLE OF CONTENTS Acknowledgements XII Preface XIII Chapter 1: Biological control of Fusarium wilt diseases ABSTRACT 2 INTRODUCTION 3 THE FUSARIUM WILT PATHOGEN 4 THE DISEASE 6 CONTROL OF FUSARIUM WILT 7 Chemical control 7 Cultural control 9 Disease resistance 10 Biological control 12 BIOLOGICAL CONTROL OF FUSARIUM WILT 12 Suppressive soils 12 Mechanisms of biological control 13 Antibiosis 13 Competition ...
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...every cell. The genetic information is stored in the DNA. During gene expression DNA is transcript to RNA and these RNA are transcribed to proteins. Bioinformatics deals with the genetic information which involves collecting, analyzing, manipulating and predicting etc. For the functioning of bioinformatics it is essential to know the genetic information that is stored in DNA. Therefore sequencing of DNA, genes or genomes is the fundamental need in bioinformatics. Organisms that are used in biological experiments in laboratories are called ‘model organisms’, of which most genomes are sequenced at present (rat, yeast, Arabidopsis; plant model organism) These sequenced genomes could be analyzed using bioinformatics tools in order to identify genes of significance as in drought tolerance genes in plants etc. Information revealed from sequencing could be studied using bioinformatics tools to understand its underlying mechanisms and to generate models that could be used in further studies. This information could also be used in evolutionary studies, micro array analysis, identification of genetic disorders (Alzheimer’s disease, breast cancer, cystic fibrosis, spinal muscular atrophy etc.) Discoveries have revealed that despite of the universality of the central dogma the regulation mechanisms in cells tend to create variations in the results of the same genetic material. This denotes the fact that DNA is not the only source of information that is to be used...
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...Model Organisms Model organisms are very important to the scientific community. They are primarily used as a standard for comparison to other organisms. If a model organism is recognized then the organism can be useful for many different fields of research. Rice (Oryza sativa) is a model organism that has been introduced and has several essential attributes. When using a model organisms some qualities that should be chosen are a short life cycle, small adult size that makes it easy to grow in a small space, small genome that is well described genetically, high reproductive outcome, already have a large assembly of mutants, and be able to out cross or be self-fertile. When looking for a model organism consideration has to be taken into account for a few things too. Some of the benefits can become a hindrance. In 2010 a new model organism for studying C4 photosynthesis was suggested, a grass (Setaria viridis), by Brutnell et al. S. viridis is a C4 photosynthesis plant. Because of the C4 functions, it will be useful to aid in further research, with having its genome sequencing known, in comparison to other organisms that are not C4 plants. By having these qualities it makes it a good model organism. Some of these good attributes include its life cycle length. In short-day growth conditions it can be grown to full maturity in about six weeks. As an adult the plant is relatively short, less than 10 centimeters and takes up very little space about 50 plants can be grown in one...
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...globe. This autograph consists of the delicate lines or corrugations with which Nature marks the insides of the hands and the soles of the feet” (Beavan 1). “A fingerprint expert can tell apart the marks of two digits more easily than he can differentiate two people’s faces “(Beavan 11). Fingerprints play a crucial role in criminal detection because they are unique, have a long history, and have many uses. To begin, Fingerprints are unique when it comes to crime detection. No two people have been found to have the same fingerprints—they are totally unique. There’s a one in a 64 billion chance that your fingerprint will match up exactly with someone else’s. Fingerprints are even more unique than DNA, the genetic material in each of our cells. Although identical twins can share the same DNA, or at least most of it they can’t have the same fingerprints. Fingerprinting is one form of biometrics, a science that uses people’s physical...
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...Computer Networks 53 (2009) 2753–2766 Contents lists available at ScienceDirect Computer Networks journal homepage: www.elsevier.com/locate/comnet Molecular communication options for long range nanonetworks Lluís Parcerisa Giné *, Ian F. Akyildiz The Broadband Wireless Networking (BWN) Laboratory, School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, USA a r t i c l e i n f o a b s t r a c t Nanotechnology is an emerging field of science devoted to provide new opportunities in a vast range of areas. In this paper, different techniques are proposed to enable the long range interconnection of nano-machines, deployed over distances from a few centimeters up to several meters. Long range nano-communications will enable the development of applications that could not be implemented using other techniques. The usage of both short-range nano techniques and long range micro techniques are not practical or are unfeasible for a huge application scope. Biologically inspired research provides promising features to long range communication, such as very low power consumption and biocompatibility. In this paper, several bio-inspired techniques are discussed following a twofold taxonomy divided according to whether a fixed physical link is required for signal propagation or not, i.e., either wired or wireless communication. In the first group, pheromones, spores, pollen and light transduction are discussed. In the second group, neuron-based...
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...in a way that does not occur under natural conditions. Genetic modification in animals negatively affects the public (consumers) by putting the animals' health at risk, introducing diseases, and allowing scientists to by pass what nature naturally intended. The 1980's marked the scientific discovery that specific pieces of DNA could be transferred from one organism to another (Cramer 2001). Although genetic modification dates back to prehistoric times with “natural selection”, the cross-breeding of relative species and specific characteristics and traits being exchanged. This occurred over time as nature intended with the process of evolution letting animals adapt to their surroundings. The difference is we now posses the technology that allows us to make this “natural selection” process happen at an exponential rate. Such speeds of cross-breeding can bring out deformities in the animal for not sufficient time is allowed in the development process. Every organism carries genes inside itself, a gene is a basic unit of heredity of the biological make up in an organism. Each organism has a specific genetic code but can be altered by introducing foreign DNA to give characteristics that it naturally would not have. This new direction of supposed beneficial science is supported by the scientific community and contrasted to man's selective breeding concept. Though there is an exchange of traits...
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...letters to nature and 10 Na3HP2O7. FV solution also contained 0.2 NaF and 0.1 Na3VO4. Rarely, irreversible current rundown still occurred with FVPP. The total Na+ concentration of all cytoplasmic solutions was adjusted to 30 mM with NaOH, and pH was adjusted to 7.0 with N-methylglucamine (NMG) or HCl. PIP2 liposomes (20–200 nm) were prepared by sonicating 1 mM PIP2 (Boehringer Mannheim) in distilled water. Reconstituted monoclonal PIP2 antibody (Perspective Biosystems, Framingham, MA) was diluted 40-fold into experimental solution. Current–voltage relations of all currents reversed at EK and showed characteristic rectification, mostly owing to the presence of Na+ in FVPP and possibly also residual polyamines. Current records presented (measured at 30 C, −30 mV holding potential) are digitized strip-chart recordings. Purified bovine brain Gbg29 was diluted just before application such that the final detergent (CHAPS) concentration was 5 M. Detergent-containing solution was washed away thoroughly before application of PIP2, because application of phospholipid vesicles in the presence of detergent usually reversed the effects of Gbg; presumably, Gbg can be extracted from membranes by detergent plus phospholipids. Molecular biology. R188Q mutation was constructed by insertion of the mutant oligonucleotides between the Bsm1 and BglII sites of pSPORT– ROMK1 (ref. 11). A polymerase chain reaction (PCR) fragment (amino acids 180–391) from pSPORT–ROMK1 R188Q mutant was subcloned into pGEX2T...
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...Composition 1 April, 11th 2013 Genetic Engineering Tentative Thesis: Even though altering DNA can lead to such horrifying events as genocide or viral diseases, genetic engineering is an important scientific breakthrough because by altering DNA, we can cure many diseases and solve many of mankind's problems. 1. History of Genetic Engineering A. What Led to the need for genetic engineering a. Prehistoric Times-1900 B. Gregor Mandel b. European botanist genetically altering plants 2. Modern Genetic Engineering C. DNA c. Watson & Krick 1. discover DNA a. How it affected science d. Herbert Boyer and Stanley Cohen 2. recombinant DNA D. Government e. Supreme Court 3. Diamond v. Chakrabarty f. FDA 4. Approval of genetic engineered food 5. Field Testing b. Tobacco c. Tomatoes g. International Bio-safety Protocol E. Advancements & Achievements h. Technology i. Disease curing j. World Hunger 3. Ethical Issues F. Religious k. Are we playing God? G. Environmental l. What’re the long term environmental effects H. Bio Ethics m. What if we make something we can’t control n. Is it possible the technology may be used to create slaves? o. When does...
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...Darwin characterized the result as endless forms most beautiful and most wonderful. It has always been debated if there is any evidence of evolution and in what fields, in this report we will give a brief summary concerning: • DNA Evidence of Evolution • Biological Evidence of Evolution DNA Evidence of Evolution: DNA molecules are complex molecules which contain the assembly instructions for every living creature. Certain aspects of DNA have been interpreted as evidence for Darwinian evolution. DNA evidence for evolution includes mutations, genetic similarities among species, so-called “Junk DNA” and “Pseudogenes.” The fact that mutations can corrupt DNA is important for the Darwinian paradigm because in order for an organism to eventually evolve into an entirely different organism, changes must be made to the creature’s genome over time. But Darwinian evolution needs more than just change. It needs an increase in genetic information. Critics point out that genetic mutation does not appear to provide a mechanism for that increase. In fact, there appear to be genetic limitations to the potential for biological change. Genetic similarities between species are also interpreted as DNA evidence for evolution. The fact that human and chimp DNA are more than 96% the same is taken to mean that humans are genetically related to chimps and therefore descended from a common ancestor. Opponents of...
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...Comparison chart | DNA | RNA | Definition: | A nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms | RNA, single-stranded chain of alternating phosphate and ribose units with the bases adenine, guanine, cytosine, and uracil bonded to the ribose. RNA molecules are involved in protein synthesis and sometimes in the transmission of genetic information. | Job/Role: | Medium of long-term storage and transmission of genetic information | The main job of RNA is to transfer the genetic code need for the creation of proteins from the nucleus to the ribosome. this process prevents the DNA from having to leave the nucleus, so it stays safe. Without RNA, proteins could never be made. | Stands for: | DeoxyriboNucleicAcid | RiboNucleicAcid | Predominant Structure: | Typically a double- stranded molecule with a long chain of nucleotides | A single-stranded molecule in most of its biological roles and has a shorter chain of nucleotides | Pairing of Bases: | A-T(Adenine-Thymine), G-C(Guanine-Cytosine) | A-U(Adenine-Uracil), G-C(Guanine-Cytosine) | Stability: | Deoxyribose sugar in DNA is less reactive because of C-H bonds. Stable in alkaline conditions. DNA has smaller grooves where the damaging enzyme can attach which makes it harder for the enzyme to attack DNA. | Ribose sugar is more reactive because of C-OH (hydroxyl) bonds. Not stable in alkaline conditions. RNA on the other hand has larger grooves which...
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...Concepts and Connections, 6e (Campbell) Chapter 12 DNA Technology and Genomics Multiple-Choice Questions 1) When DNA fingerprinting was first used, A) genetic evidence was collected using only DNA from blood. B) blood samples from theGenomic libraries can be constructed using either bacterial plasmids or what other vector? crime scene were used to match the blood of a person who confessed. C) the two semen samples did not match the person who initially confessed. D) genetic testing revealed that the two murdered girls were killed by two different people. E) the DNA evidence was not convincing enough to convict the suspect. Answer: C Topic: Opening Essay Skill: Factual Recall 2) Biotechnology A) is a modern scientific discipline that has existed for only a few decades. B) is strictly concerned with the manipulation of DNA. C) has only been used successfully in the area of forensic science. D) has been around since the dawn of civilization. E) is generally considered more harmful than valuable to society. Answer: D Topic: 12.1 Skill: Factual Recall 3) When DNA from two sources is combined into one single piece of DNA, it is known as A) cloned DNA. B) recombinant DNA. C) a vector. D) a plasmid. E) a DNA library. Answer: B Topic: 12.1 ...
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