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Current Research On Muscular Dystrophy
576 wordsDuchenne's muscular dystrophy is the result of a defective gene on the X chromosome. This gene is responsible for production of the muscle protein dystrophic. Dystrophin is an integral part of the dystrophic-glycoprotein complex which bears the brunt of the force generated during muscular contraction. When dystrophic is not produced, the dystrophic-glycoprotein complex (DCG) is not present. Absence of the DCG leads to tears in the muscle membrane because the muscle membrane bears the force of mu...
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Genetic Disorders Genetic Screening
1,892 wordsBiology II 10 / 3 / 00 Earths inhabitants have populated all of the regions of the world, discovered places never dreamed of, and have advanced beyond normal understanding, while man can still be conquered by an object which is immeasurably small. While man has been so busy trying to find a way to get rid of all pain and suffering, he has finally discovered that there are things that cannot be stopped. This relentless phenomenon is called a genetic disorder. A genetic disorder by definition is a...
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Hastings Center Report U S News World Report
2,019 wordsThere are many important issues discussed in public policy today. One of these issues is homosexual marriage. This is an important issue because it deals with a relatively large minority of the United States. This issue is put into many different lights. Those of morals, family values and religion; and those of equality, constitutionality, and right to privacy. The aspect with the most relevance is constantly left up to debate. Homosexuals are 'gay' due to a combination of factors. These factors...
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Factor Viii Clotting Factor
878 wordsAccording to the dictionary Hemophilia is a hereditary disorder in which the blood fails to clot normally, causing prolonged bleeding from even minor injuries. This is only the very basis of this disorder. First of all there are two kinds of Hemophilia. Hemophilia A and Hemophilia B. Hemophilia A is caused by lack of protein factor VIII and is found in 80 % of hemophiliacs. Other names for this are classical hemophilia, factor VIII deficiency hemophilia. Hemophilia B is caused by a deficiency of...
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Gay Or Lesbian Gays And Lesbians
1,520 wordsWhat is homosexuality? Homosexuality is the manifestation of sexual desire toward a member of one's own sex or the erotic activity with a member of the same sex. (The Greek word homos means "the same"). A lesbian is a female homosexual. More recently the term "gay" has come into popular use to refer to both sexes who are homosexuals. Dr. Strauss's definition fails to differentiate between homosexual orientation (i. e. same sex feelings of attraction) and homosexual behavior (i. e. sexual activit...
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Extra Chromosome Genetic Material
1,960 wordsIn 1942, Dr. Harry Klinefelter and his coworkers at the Massachusetts General Hospital in Boston published a report about nine men who had enlarged breasts, sparse facial and body hair, small testes, and an inability to produce sperm. By the late 1950 s, researchers discovered that men with Klinefelter syndrome, as this group of symptoms came to be called, had an extra sex chromosome, XXY instead of the usual male arrangement, XY. In the early 1970 s, researchers around the world sought to ident...
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Factor Ix Clotting Factor
1,179 wordsIntroduction Hemophilia is a rare genetic blood clotting disorder that primarily affects males. People living with hemophilia do not have enough of, or are missing, one of the blood clotting proteins naturally found in blood. Two of the most common forms of hemophilia are A and B. In persons with hemophilia A (also called classic hemophilia), clotting factor VIII is not present in sufficient amounts or is absent. In persons with hemophilia B (also called Christmas disease), clotting factor IX is...
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Percent Of The Population Opposing Viewpoints
2,652 wordsHomosexuality- The Major Cause of Homosexuality The origins of human sexuality and homosexuality in particular have puzzled philosophers, theologians and ordinary people for thousands of years. In scatter cultures, homosexuals have been regarded as a normal part of life, however, same sex attraction to most cultures have been treated as an unforgivable sin or a terrible crime. Many psychologists and psychiatrist had attempted to? treat and counsel? the homosexuals. In our social norm, male attra...
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Color Blindness Ed
709 wordsColor Color Blindless Color Blindless Color blindness is the inability to distinguish particular colors. It is generally an inherited trait, but can result from a chemical imbalance or eye injury. There are three primary colors. They are red, blue, and yellow. All other colors are the results of different combinations of primary colors. Special visual cells, called cones, are respon-sible for our ability to see color. People with normal vision have three different types of cones, each responsibl...
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Color Blindness Defective Gene
981 wordsColor Blindness Genetic disorders result from heritable abnormalities in the genetic makeup of a human. Disorders are often apparent at birth; however, others may develop during childhood or adult life. Some genetic disorders may result from a mutation in a single gene, which results in the absence or alteration of the protein that corresponds. Such an alteration disrupts some metabolic or developmental process, leading to a disease. Color blindness is an example of a disorder that can be inheri...
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Mentally Retarded Mental Retardation
639 wordsFragile X Syndrome is an inherited genetic condition associated with mental retardation. It is caused by a mutation of the X chromosome. Fathers cannot pass the disease onto their sons, because females always give an x chromosome where a man gives either an x or a y. If a man gives a y chromosome, then the result is a boy baby, and since the disease is only carried in the x chromosome, a boy can only inherit this disease from his mother. A girl, on the other hand, can inherit the disease from ei...
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Duchenne Muscular Dystrophy Michael
1,823 wordsI Genetics My Dearest Susan, I don? t know how to write what I am about to write. There is no easy way to do this. I am not one to be able to put his feelings down on paper. You know that. I am sure you know what this is about. We have not been able to go more than 10 minutes together without bringing it up. I feel as if I need a break from the arguing. So I decided to write this letter. Rather than yell and get distraught, I? ll let you read exactly how I feel and you can write me back, in resp...
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Clotting Factor Defective Gene
1,144 wordsHemophilia is the best known of hemorrhagic disorders. When a person has hemophilia, the blood does not clot properly and bleeding persists. The people who have hemophilia are called hemophiliacs or bleeders. Bleeding disorders, such as hemophilia, result from a disruption of the bodys process of how blood clots are formed. The coagulation process involve platelets as well as plasma proteins called clotting factors. Clotting begins when platelets stick to the site of an injury to a blood vessel....
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Generation To Generation Gregor Mendel
1,312 wordsWhat is Genetics? Genetics is usually defined as the transmission of traits from one generation to the next. Although correct in its meaning, the definition is rather vague. Genetics not only involves the transmission of traits from generation to generation, but it also involves every biological occurrence in an organism. The history of genetics, beginning with the ideas of Aristotle up till the rediscovery of Mendel's work, has gone through many changes both in theory and discovery. The history...
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Tashia Mader X Chromosome Genes
564 wordsSince the first single base pair substitution undergoing an inherited disease inhuman's, 20 years have elapsed. The disease in humans was characterized at the DNA level. The initiative was recently taken to be established for resources for pathological genetic variants. Spontaneously mutations may occur or they maybe induced irradiation, some external stimulus. Gene mutation in humans is a highly specific process with important implications for the nature prevalence and diagnosis of genetic dise...
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Male Hormone Testosterone Sexual Orientation
2,012 wordsIs Sexuality a Biological or Cultural Process The aim of this essay, is to try and establish if sexuality, is an innate biological process that takes place as a result of our genetic make-up or wether sexuality is a result of our cultural back ground and the environment in which we are raised. These two differing theories are known as the nature / nurture debate, nature representing the biological theory for our sexuality and nurture representing environmental influences for our behaviour. The f...
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Duchenne Muscular Dystrophy Muscular Dystrophy Association
2,303 wordsThere Muscular Dystrophy MUSCULAR DYSTROPHY There is no single disease called muscular dystrophy. Muscular Dystrophy (MD) refers to a group of inherited diseases that are characterized by progressive weakness and degeneration of muscle tissue, with or without the breakdown of nerve tissue. (Emery, A. ) The muscular dys trophies are a group of muscles diseases that have three features in common: they are hereditary; they are progressive; and like stated above, each causes a characteristic of sele...
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Duchenne Muscular Dystrophy Prenatal Diagnosis
2,186 wordsPrenatal DianosisHeredity Disorders, Other Biochemical Diseases, and Disfiguring Birth Defects There are over 250 recognized sex-linked diseases, affecting every organ system. Of these, 95 % affect males, (Emery, 1968). Despite these many sex-linked diseases, at present prenatal diagnosis can specifically be made in fewer than 40 diseases. (Emery, 1968). These sex-linked diseases are individual rare and some are named after physicians who described them, for example, Hemophilia A and B, Duchenne...
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Kill Cancer Cells Prostate Cancer
1,143 wordsCancer Prostate Cancer Prostate Cancer Cancer of the prostate, a common form of cancer, is a disease in which cancer (malignant) cells are found in the prostate. The prostate is on the male sex glands, and is located just below the bladder and in front of the rectum. The size of the prostate is about the size of a walnut. It surrounds the part of the urethra, the tube that carries urine from the bladder to the outside of the body. The prostate makes fluid that becomes part of the semen, which co...
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Mental Retardation Extra Chromosome
1,780 wordsTHEKlinefelter Syndrome KLINEFELTER SYNDROME THE XXY BOY IN THE CLASSROOM Although there are exceptions, XXY boys are usually well behaved in the classroom. Most are shy, quiet, and eager to please the teacher. But when faced with material they find difficult, they tend to withdraw into quiet daydreaming. Teachers sometimes fail to realize they have a language problem, and dismiss them as lazy, saying they could do the work if they would only try. Many become so quiet that teachers forget theyre...
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