-
Genetic Disorder Severe Mental
1,175 wordsTo the Parents or Legal Guardians of Patient XC 902 -V 42 In our extensive testing it was revealed to us that your son suffers from a genetic disorder called Trisomy 13 or Patau's Syndrome. Trisomy 13 is a syndrome caused by an extra 13 th chromosome. As you may be aware that humans have 23 chromosomes in pairs of two. In your son's case the 13 chromosome has and extra pair. Normally it is thought that a Trisomy occurs when, at conception, either the father's sperm or the mother's egg contained ...
Free research essays on topics related to: extra chromosome, severe mental, genetic disorder, live births, heart disease -
Percent Of The Cases Genetic Disorders
1,268 wordsDown syndrome, the most common genetic birth defect associated with mental retardation, occurs equally across all races and levels of society. The effects of the disorder on physical and mental development are severe and are expressed throughout the life span. The individual's family is also affected emotionally, economically, and socially (Bellenir 1996). Characteristics associated with Down syndrome include: epicanthus folds, unilateral squints, a flat saddle nose, flat jaw bones, large fissur...
Free research essays on topics related to: mental retardation, genetic disorders, extra chromosome, genetic material, percent of the cases -
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...
Free research essays on topics related to: percent chance, single gene, genetic screening, genetic disorders, genetic material -
People Who Suffer Downs Syndrome
2,784 wordsAll children that are born with Downs Syndrome (previously called mongolism) have a common characteristic appearance and may also share similar congenital birth defects. Dr John Downs, of whom the condition is so named after, found that children who were born with these similar characteristics and that after testing were complete. It was found that there was a common chromosome abnormality, which is known as Trisomy 21 (Cunningham, 1996). Every pregnant woman is at risk of having a Downs Syndrom...
Free research essays on topics related to: people who suffer, child born, extra chromosome, downs syndrome, genetic material -
The Human Genome Project
727 wordsA genome is all the DNA in an organism, including its genes. Genes carry information for making all the proteins required by all organisms. These proteins determine, among other things, how the organism looks, acts, processes and fights infections. DNA is made up of four similar chemicals (bases, adenine , Thymine
, cytosine , and guanine ) that are repeated millions or billions of times throughout a genome. The human genome has three billion base pairs. The order of these base pairs...
Free research essays on topics related to: human genome, base pairs, human dna, high quality, chromosome 21 -
People With Down Syndrome 21 St Chromosome
1,571 wordsH 2 > Introduction In the United States about one in every 1000 live births is a child with Downs Syndrome. Downs Syndrome affects all races and genders. It is caused by extra genetic material on the twenty-first chromosome. There are three different types of Downs Syndrome known to man today. The first case of reported was in the late 1950 s, but the condition was identified in the late 1960 s. In most cases it is simple to identify an individual with Downs Syndrome. In most cases the f...
Free research essays on topics related to: 21 st chromosome, people with down syndrome, downs syndrome, muscle tone, extra chromosome -
Child With Down Syndrome People With Down Syndrome
1,218 wordsDown syndrome is a genetic disease caused by three major factors, genetics, chromosome formation and cell division. Through scientific research, scientists have made vast discoveries on how to "treat" people with the disease and how to help families cope with a child with Down syndrome. Through our research we hope to make more people aware of Down syndrome, how it is caused, how they can help and what is being done to treat people with the disease, so that one day it may be "curable. " Down's s...
Free research essays on topics related to: cell division, 21 st chromosome, extra chromosome, people with down syndrome, child with down syndrome -
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...
Free research essays on topics related to: extra chromosome, social skills, x chromosomes, y chromosome, genetic material -
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...
Free research essays on topics related to: spontaneous generation, x chromosomes, gregor mendel, genetic material, generation to generation -
Human Genome Project Dna Sequences
5,742 wordsLife as we know it is specified by genomes. Every organism possess a genome that contains the biological information needed to construct and maintain a living example of that organism. Most genomes, including those for all cellular lifeforms, are made of DNA (deoxyribonucleic acid) but a few viruses have RNA (ribonucleic acid) genomes. DNA and RNA are polymeric molecules made up of linear, unbranched chains of monomeric substances called nucleotides. Each nucleotide has three parts: a sugar, a p...
Free research essays on topics related to: human genome project, dna sequences, dna molecules, gene expression, dna sequencing -
Important To Remember Males And Females
3,107 wordsHuntington's disease is an inherited neurodegenerative disorder. It is passed from parent to child in an autosomal dominant manner (Berkon, pg. 1493), meaning you need only one copy of the gene to inherit the disease. This is in contrast to an autosomal recessive disorder which requires two altered genes to inherit the disorder or an altered gene from each parent (Hayden, pg. 11). If you have the gene and live long enough, you will eventually develop HD and each of your children has a 50 % chanc...
Free research essays on topics related to: autosomal dominant, males and females, genetic testing, huntington disease, important to remember -
Germ Cells Daughter Cells
1,558 wordsMore than one celled organisms grow by way of mitosis and the cytoplasmic division of body cells. On the other hand, meiosis occurs only in germ cells, which are put aside for the formation of gametes (sperm and egg). Reproduction by meiosis allows for species survival and it increases genetic variability. The process, during which the germ cells are generated is called meiosis. It represents natures solution to the problem of chromosome doubling that would occur, if two diploid cells, i. e. two...
Free research essays on topics related to: body cells, germ cells, chromosomes, cell wall, daughter cells -
Autosomal Recessive Lab Manual
1,318 wordsMapping Unknown Mutations Of Mutant Strain U 5914 Mapping Unknown Mutations Of Mutant Strain U 5914 D Abstract Unknown mutant strain U 5914 Drosophila melanogaster with 3 mutated phenotypes: white eyed, dark body color, and incomplete longitudinal vein II and IV. This mutant strain was crossed with wild-type strain and marker strains to study the genetic characteristics of these 3 mutant genes. The results showed that dark body color is an autosomal recessive mutation (db) located on chromosome ...
Free research essays on topics related to: genes, autosomal recessive, chromosome, lab manual, unknown -
Mental Retardation Extra Chromosome
536 wordsState that meiosis is a reduction division in terms of diploid and haploid numbers of chromosomes Outline the process of meiosis including pairing of chromosomes followed by two divisions which result in four haploid cells In meiosis, the number of chromosomes is halved, the daughter cells receiving only one of each type of chromosome instead of two. It occurs in the formation of gametes (sex cells). In the diploid parent cell, chromosomes occur in homologous pairs (the same size). The parent sp...
Free research essays on topics related to: extra chromosome, mental retardation, chromosome 21, daughter cells, law -
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...
Free research essays on topics related to: y chromosome, genetic material, extra chromosome, x chromosome, mental retardation
Customer center
