Life Sciences

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  • Aids and Hiv

    AIDS and HIV Introduction Being one of the most fatal viruses in the nation, AIDS (Acquired Immunodeficiency Syndrome) is now a serious public health concern in most major U.S. cities and in countries worldwide. Since 1986 there have been impressive advances in understanding of the AIDS virus,

    2364 Words | 7 Pages

  • Anabolic Steroids

    Anabolic Steroids Anabolic steroids are synthetic coumpounds formulated to be like the male sex hormone testosterone. Many athletes use anabolic steroids male and female alike, such as body builders , weightlifters, baseball players, football players, swimmers, and runners. They do so because the

    1713 Words | 6 Pages

  • Antibiotic Resistance in Bacteria

    Antibiotic Resistance in Bacteria For about 50 years, antibiotics have been the answer to many bacterial infections. Antibiotics are chemical substances that are secreted by living things. Doctors prescribed these medicines to cure many diseases. During World War II, it treated one of the bigge

    751 Words | 3 Pages

  • Birth Defects

    Birth Defetc s No one is immune to birth defetc s, yet not everyone is equally susceptible. Birth defetc s are not merely a medical problem. They have profound effetc s on the social and psychological well being of their family and friends. In the normal course of fetal development, cel

    2486 Words | 9 Pages

  • Cancer

    Cancer Right now, cancer is one of the most feared diseases in the world. In the early 1990s almost 6 million new cancer cases developed and more than 4 million deaths from cancers occurred. Also more than one-fifth of all deaths were caused by cancer and it has been predicted, by the American Ca

    1531 Words | 4 Pages

  • Current Status of Malaria Vaccinology

    Current Status of Malaria Vaccinology In order to assess the current status of malaria vaccinology one must first take an overview of the whole of the whole disease. One must understand the disease and its enormity on a global basis. Malaria is a protozoan disease of which over 150 million cases

    2248 Words | 7 Pages

  • Development of the Human Zygote

    Development of the Human Zygote November 16, 1995 Hundreds of thousands of times a year a single-celled zygote, smaller than a grain of sand, transforms into an amazingly complex network of cells, a newborn infant. Through cellular differentiation and growth, this process is completed with pre

    2505 Words | 9 Pages

  • Diseases: Sex Linked and Sex Influenced

    Diseases: Sex Linked and Sex Influenced by Richard Nixon Honors Biology Mrs. Linda December 19, 1994 There are thousands of cases of sex linked and sex influenced diseases worldwide. These diseases can range from a social inconvenience, to a fatal ailment. In sex linked diseases, like Musc

    3093 Words | 8 Pages

  • Dna and Crime

    DNA and Crime Deoxyribonucleic Acid - the fingerprint of life also know as DNA was first mapped out in the early 1950's by British biophysicist, Francis Harry Compton Crick and American biochemist James Dewey Watson. They determined the three-dimensional structure of DNA, the substance that pass

    1344 Words | 4 Pages

  • Evolution of Immunity and the Invertebrates

    Evolution of Immunity and the Invertebrates "Article Summery" Name: "Immunity and the Invertebrates" Periodical: Scientific American Nov, 1996 Author: Gregory Beck and Gail S. Habicht Pages: 60 - 71 Total Pages Read: 9 The complex immune systems of humans and other mammals evolved over quite a l

    1184 Words | 4 Pages

  • Essay on Evolution

    Essay on Evolution There are many mechanisms that lead to evolutionary change. One of the most important mechanism in evolution is natural selection which is the differential success in the reproduction of different phenotypes resulting from the interaction of organisms with their environment. Na

    924 Words | 3 Pages

  • The Future of Human Evolution

    The Future of Human Evolution Alexander R. Prof. Kohn Darwinism and Evolution 12-6-96 Evolution, the science of how populations of living organisms change over time in response to their environment, is the central unifying theme in biology today. Evolution was first explored in its semi-mode

    1813 Words | 5 Pages

  • Genetic Engineering

    Genetic Engineering The engineering of deoxyribonucleic acid (DNA) is entirely new, yet genetics, as a field of science, has fascinated mankind for over 2,000 years. Man has always tried to bend nature around his will through selective breeding and other forms of practical genetics. Today, scienti

    1118 Words | 3 Pages

  • Genetic Engineering, History and Future: Altering the Face of Science

    Genetic Engineering, History and Future: Altering the Face of Science Science is a creature that continues to evolve at a much higher rate than the beings that gave it birth. The transformation time from tree-shrew, to ape, to human far exceeds the time from analytical engine, to calcul

    3036 Words | 9 Pages

  • Changes in the Atmosphere Causing Multicellularity

    Changes in the Atmosphere Causing Multicellularity About 2.5 billion years ago, oxygen began slowly to accumulate in the atmosphere, as a result of the photosynthetic activity of the cyanobacteria. Those prokaryotes that were able to use oxygen in ATP production gained a strong advantage, and

    482 Words | 2 Pages

  • The Human Genome Project

    The Human Genome Project The Human Genome Project is a worldwide research effort with the goal of analyzing the structure of human DNA and determining the location of the estimated 100,000 human genes. The DNA of a set of model organisms will be studied to provide the information necessary for un

    958 Words | 3 Pages

  • Huntington's Disease

    Huntington's Disease Huntington's disease, also known as Huntington's chorea is a genetic disorder that usually shows up in someone in their thirties and forties, destroys the mind and body and leads to insanity and death within ten to twenty years. The disease works by degenerating the ganglia (a

    1110 Words | 3 Pages

  • Introns and Exons

    Introns and Exons March 31 1997 AP. Biology essay The finding of the Introns and the exons was one of the most significant discoveries in genetics in the past fifteen years. split genes were discovered when lack of relation between DNA sequences were seen during. DNA- mRNA hybridation. For all

    677 Words | 2 Pages

  • Lassa Fever: an Old World Arenavirus

    Lassa Fever: An Old World Arenavirus ABSTRACT A brief summary of lassa fever, its history, pathology and effects on the indigenous populations. Also, lassa fever in the context of newly emerging diseases. LASSA FEVER On January 12, 1969, a missionary nun, working in the small town of Lassa, Ni

    1111 Words | 4 Pages

  • Leukemia

    Leukemia Leukemia is a disease characterized by the formation of abnormal numbers of white blood cells, for which no certain cure has been found. Leukemia is also conditions characterized by the transformation of normal blood-forming cells into abnormal white blood cells whose unrestrained growth

    962 Words | 3 Pages

  • Gregor Mendel's Theories of Genetic Inheritance

    Gregor Mendel's Theories of Genetic Inheritance Gregor Mendel played a huge role in the underlying principles of genetic inheritance. He grew up in a Augustinian brotherhood where he learned agricultural training with basic education. He then went on to the Olmutz Philisophical Institute and

    351 Words | 2 Pages

  • Morality and the Human Genome Project

    Morality and the Human Genome Project Does the Human Genome Project affect the moral standards of society? Can the information produced by it become a beneficial asset or a moral evil? For example, in a genetic race or class distinction the use of the X chromosome markers can be used for the iden

    1377 Words | 4 Pages

  • New Developments or Research in Genetic Cloning: Summary

    New Developments or Research in Genetic Cloning: Summary Since genetic cloning is a very wide topic, the focus of my paper lies mainly on the new discoveries which might be beneficial to human beings. The focus of the first section of the paper is on the various cloning techniques geneticists u

    2689 Words | 9 Pages

  • The Ebola Virus

    The Ebola Virus A virus is an ultramicroscopic infectious organism that, having no independent metabolic activity, can replicate only within a cell of another host organism. A virus consists of a core of nucleic acid, either RNA or DNA, surrounded by a coating of antigenic protein and some

    1647 Words | 5 Pages

  • The Ebola Virus

    The Ebola Virus INTRODUCTION The most deadly killers on this earth are too small to see with the naked eye. These microscopic predators are viruses. In my report, I will answer many basic questions concerning one of the fastest killing viruses, the Ebola virus. Questions such as "How does it

    1621 Words | 5 Pages

  • The Lymphatic System

    The Lymphatic System The Lymphatic System is very important. It helps with the Cardiovascular system, and our immune systems. The Lymphatic System is made up of two semi-independent parts. One is a network of lymphatic vessels. The other part is various lymphoid tissues and organs all over the

    501 Words | 2 Pages

  • The Process of Mitosis

    The Process of Mitosis Mitosis is the term used to describe cell division for replication. The product at the end of mitosis is two daughter cells both genetically identical to the original (parent) cell. This process (mitosis) is used for growth and repair within an organism (and also for asexual

    518 Words | 2 Pages

  • Dna: the Thread of Life

    DNA: The Thread of Life The "thread of life", is deoxyribonucleic acid, otherwise known as DNA. It is the spiral shaped molecule found in the nucleus of cells. Scientists have known since 1952 that DNA is the basic substance of heredity. This was hypothesized, and later confirmed by James D. Wa

    712 Words | 2 Pages

  • Protists and Viruses

    Protists and Viruses A flagellum is a whiplike tail that helps organisms living in moist places to move The characteristics of protists is they are euckaryotic organisms, they are one or many-celled but do not have the complex organization found in plants and animals, and some make there own food

    286 Words | 1 Pages

  • Viruses: Complex Molecules or Simple Life Forms?

    Viruses: Complex Molecules or Simple Life Forms? Viruses have been defined as "entities whose genomes are elements of nucleic acid that replicate inside living cells using the cellular synthetic machinery, and cause the synthesis of specialised elements that can transfer the genome to othe

    758 Words | 3 Pages