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Free research papers and essays on topics related to: deoxyribonucleic acid dna

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  • Air Pollution - 1,546 words
    Air Pollution Air Pollution is addition of harmful substances to the atmosphere resulting in damage to the environment, human health, and quality of life. One of many forms of pollution, air pollution occurs inside homes, schools, and offices; in cities; across continents; and even globally. Air pollution makes people sick, it causes breathing problems and promotes cancer, and it harms plants, animals, and the ecosystems in which they live. Some air pollutants return to earth in the form of acid rain and snow, which corrode statues and buildings, damage crops and forests, and make lakes and streams unsuitable for fish and other plant and animal life. Pollution is changing the earth's atmosph ...
    Related: air pollution, pollution, greenhouse gases, global scale, burn
  • Breast Cancer - 1,598 words
    Breast Cancer Hereditary breast cancer is a disease caused by mutations on breast cancer suppresser genes (ACCV Pg.17). Mutations allow normal cells to divide abnormally (ACCV Pg.13). Resulting cells divide faster as they do not specialize and form useless lumps of cells called malignant tumours (ACCV Pg.13). Genetic Screening is the process where Deoxyribonucleic Acid (DNA) fragments are analyzed for a specific gene. The purpose is to identify individuals carrying disease causing genes so they can change their life style and also help invent a cure (ACCV Pg.20). This is done by amplifying DNA withdrawn from an individual, then specific gene mutations are targeted using the Electrophoresis p ...
    Related: breast, breast cancer, cancer, fact sheet, clinical practice
  • Cells Of The Human Body - 2,250 words
    Cells Of The Human Body Cells are the basic living units of all plants and animals. The cell is the structural and functional unit of all living organisms. There are a wide variety of cell types, such as nerve, muscle, bone, fat, and blood cells. Each cell type has many characteristics, which are important to the normal function of the body as a whole. One of the important reasons for maintaining hemostasis is to keep the trillions of cells that form the body functioning normally. An averaged size cell is one-fifth the size of the smallest dot you can make on a sheet of paper with a sharp pencil. Although cells may have quite different structures and functions, all cells share some common ch ...
    Related: blood cells, cell division, human body, genetic information, deoxyribonucleic acid dna
  • Cloning Is It Ethical - 1,152 words
    Cloning- Is It Ethical Genetic Engineering; Cloning In today world of advanced technology and even faster progress of this technology one has to stop and examine what we have accomplished. How far do we want to go with this technology of genetic engineering, particularly in the field of cloning. Examining genetic engineering and its many possibilities holds great hope for the future. Centrally the issue of cloning has been a hot topic in the media mainly because its has become a technological as well as a medical breakthrough. The possibilities of cloning are innumerable that is, if it works. But the other side of the coin are the ethics of the process. What happens when we master cloning of ...
    Related: cloning, ethical, drug administration, united states food, eggs
  • Cloning Issues - 1,738 words
    Cloning Issues I have observed in my nineteen years of living that almost everyone in this society strives to be the same or like the popular culture. The average person is very materialistic, and strives for an appealing physical appearance. Artificiality is common in the popular culture. For example, dying of hair color, inserting color contacts, getting lyposuction, implants or removal of flaws on the body is prevalent. I strongly oppose human cloning primarily because I believe that humans already try to replicate themselves enough and having the same genes is not necessary. Plus, just because there may be two identical beings doesnt mean that they will behave the same. In this essay wil ...
    Related: cloning, human cloning, endangered species, natural process, morality
  • Genetic Engineering - 1,021 words
    Genetic Engineering On February 24, 1997 news broke globally that Ian Wilmut of the Roslin Institute in Scotland had successfully cloned the genetic material of an adult sheep and had created the infant Dolly. The discovery instantly caught the world's attention because Dolly had only one parent; Dolly had been formed by transferring the genetic material of an adult female into one of its own embryos. This process, known as "somatic cell nuclear transfer", refers to removal of genetic material from an adult cell and then implantation of that material into an embryo that has had it's original genetic material removed. The only way to clone an existing animal uses the process of somatic cell n ...
    Related: engineering, genetic, genetic engineering, genetic information, human genetics
  • Genetic Engineering Awareness Week - 1,473 words
    Genetic Engineering Awareness Week What are you Eating? Campaign for Food Safety and Awareness General Education Honors Project Project Proposal March 31, 2000 Table of Contents Introduction 3 The Project 3 Significance 4 Evaluation 5 Team Budget 6 Bibliography 7 Supplemental Bibliography 8 Team Signatures 9 The technological changes and innovations during the last 20 years have created a remarkable array of new creations. All living organisms are compromised of a substance called deoxyribonucleic acid (DNA), which contains genes that are the blueprint for that organism. Scientists discovered that DNA was interchangeable between organisms and created new breeding methods such as cros ...
    Related: awareness, engineering, genetic, genetic engineering, water resources
  • Genetics - 2,123 words
    Genetics Genetics: Issues of IVF, screening, pre-selection, genetic testing, cloning and the social implications. James Watson once said, We used to think that our fate was in our stars. Now we know that, in large measure, our fate is in our Genes (Jaroff 1998). On June 26th 2000, The Human Genome Project will unveil its rough draft mapping of the deoxyribonucleic acid (DNA) sequences within the human chromosomes (genetic code), to the public. The project has been ongoing since the late eighties, and is a huge international exercise, which has so far cost approximately 3 billion dollars. The final draft is expected to be complete by the year 2003 and the assumption is that it will have a mas ...
    Related: genetic code, genetic disease, genetic disorder, genetic screening, genetic testing, genetics
  • Hepatitis B - 349 words
    Hepatitis B The disease known as Hepatitis B is caused by the infectuous Hepatitis B virus (HBV). HBV alone has infected about 400 million people in the world, which makes HBV one of the most common pathogens. Almost 700 million U.S. Dollars are spent every year for treating Hepatitis patients. Structure: HBV is a 42 nm doubleshelled deoxyribonucleic acid (DNA) virus of the class Hepadnaviridae. The outer surface membrane contains Hepatitis B surface antigen (HBsAg), which also circulates in blood as 22 nm spherical and tubular particles. The inner core of the virus contains Hepatitis B core antigen (HBcAG), Hepatitis B e antigen (HBeAg), a single molecule of partially doublestranded DNA, an ...
    Related: hepatitis, hepatitis b, deoxyribonucleic acid dna, addison wesley, blood
  • Human - 468 words
    Human Genome Project Human Genome Project, international scientific collaboration, the goal of which is to gain a basic understanding of the entire genetic content, or genome, of a human being (see Genetics; Heredity). This genetic information is found in each cell of the body, encoded in the chemical deoxyribonucleic acid (DNA). The project is intended to identify all the genes in the nucleus of a human cell; to establish, by a process known as mapping, where those genes are located on the chromosomes in the nucleus; and to determine, by a process known as sequencing, the order of the DNA's chemical subunits encoding the genetic information. The ultimate goal of genomic mapping and sequenci ...
    Related: human genome, genetic information, deoxyribonucleic acid, preventive medicine, medicine
  • Human Growth And Development - 1,193 words
    ... tic, scrupulous, and persevering. 77. continuity theory: view that people tend to cope with daily life in late adulthood in essentially the same ways they coped in earlier periods of life. 78. continuity- discontinuity issue: issue concerned with whether a developmental phenomenon follows a smooth progression throughout the life span or a series of abrupt shifts. 79. conventional level: second level of reasoning in Kholbergs theory, where moral reasoning is based on societys norms. 80. convergent thinking: using information to arrive at one standard and correct answer. 81. cooing: early vowel-like sounds that babies produce. 82. cooperative play: play that is organized around a theme, wi ...
    Related: career development, human development, human growth, moral reasoning, point of view
  • Jurassic Park And Tech - 1,318 words
    Jurassic Park And Tech The girl shrieks as the giant tree trunk of a leg crashes down shaking the earth. Her screams are then drowned out by the prehistoric roar of the genetically engineered Tyrannosaurus Rex as it searches for prey (Crichton, 1991). Everyone remembers this scene from the best-selling novel by Michael Crichton, Jurassic Park. These scenes were then brought to life by producer/director Steven Spielberg in the immensely popular movie by the same name. Is this possible? As technological advances in molecular biology steam into the twenty-first century, many scientists have found themselves asking this very question. With continuing advancements in the methods of recombining DN ...
    Related: jurassic, jurassic park, park, tech, the girl
  • Kornberg - 1,217 words
    ... verturned a cylinder, which had a domino effect that destroyed the entire experiment. Returning the next morning, Kornberg noticed one vile in the centrifuge. The remains had separated, and he collected the solid material. This fraction had the bulk of the enzyme activity and was several-fold purer than the best of all previous preparations. This step (without the cylinder breakage) became part of the published procedure on enzyme purification. During his time spent with Severo Ochoa at New York University School of Medicine in 1946, and time spent with Carl and Gerty Cori at the Washington University School of Medicine in St. Louis in 1947, Kornberg refined his knowledge of enzyme produ ...
    Related: nobel prize, professor emeritus, stanford university, escherichia, chairman
  • Mitochondria And Chloroplast Essay - 577 words
    Mitochondria and Chloroplast Essay name = Fnord Discordia email = publish = yes subject= Biology title = Mitochondria and Chloroplast Essay Biology Mitochondria and Chloroplast Essay I. Introduction Out of all the organelles there are two that have fascinated microbiologists for the past hundred years. The first is the mitochondria, nicknamed the "powerhouse of the cell." The second is the chloroplast in plant cells that have functions similar to those of the mitochondria. What do these organelles do? What are the similarities and differences of these organelles? This essay will help you to understand these two fascinating organelles. II. Mitochondria Mitochondria are small cytoplasmic orga ...
    Related: chloroplast, mitochondria, solar energy, san diego, publish
  • Morality And The Human Genome Project Mwf 11:00 Bibliography Congress Of The United States, Office Of Technology Assessment, - 1,353 words
    Morality and the Human Genome Project MWF 11:00 Bibliography Congress of the United States, Office of Technology Assessment, Mapping Our Genes: Genome Projects: How Big, How Fast?, Johns Hopkins University Press: Baltimore,1988. Gert, Bernard, Morality and the New Genetics: A Guide for Students and Health Care Providers, Jones and Bartlett: Sudbury, Massachusetts,1996. Lee, Thomas F., The Human Genome Project: Cracking the Genetic Code of Life, Plenum Press: New York, 1991. Murphy, Timothy F., and Lappe, Marc, ed., Justice and the Human Genome Project, University of California Press: Berkeley, 1994. Does the Human Genome Project affect the moral standards of society? Can the information prod ...
    Related: congress, genome, genome project, human body, human genome, morality, technology
  • Reproduction Process - 2,027 words
    ... liography ENCYCLOPDIA BRITANNICA reproduction process by which organisms replicate themselves. In a general sense reproduction is one of the most important concepts in biology: it means making a copy, a likeness, and thereby providing for the continued existence of species. Although reproduction is often considered solely in terms of the production of offspring in animals and plants, the more general meaning has far greater significance to living organisms. To appreciate this fact, the origin of life and the evolution of organisms must be considered. One of the first characteristics of life that emerged in primeval times must have been the ability of some primitive chemical system to mak ...
    Related: reproduction, life cycle, deoxyribonucleic acid, deoxyribonucleic acid dna, formulating
  • Schizophrenia - 651 words
    Schizophrenia In a quiet, darkened hospital room a twenty five year old man with paranoid schizophrenia lies on a table. His eyes are closed. He is listening to the voice that has plagued him for more than two years. The voice is relentless, speaking once every ten seconds or so. Don't act stupid, it says in a demanding tone. Dirty rotten bastard. This serious mental condition includes delusions, hallucinations, disorientation, and thinking disorders. Schizophrenia can be traced back to a persons genetics, and can have devastating effects. This is one of the many problems that a schizophrenic person has to deal with daily. Some symptoms include visual and auditory hallucinations. Paranoia ma ...
    Related: paranoid schizophrenia, schizophrenia, mental illness, mental health, auditory
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