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21 St Chromosome Extra Chromosome
583 wordsDown Syndrome or Trisomy 21 as it is also commonly known, is a genetic condition that for many years has been shrouded in fear, darkness & shame. There is absolutely nothing to fear, and there never should be any feelings of shame, it is not the persons fault. The only darkness associated with down syndrome is the ignorance many people have towards it. Basically down syndrome means that a person has one extra chromosome in each of the million of cells in their body. Instead of 46 chromosomes per...
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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...
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Important To Understand University Of Texas
1,893 wordsAn Introduction To Telomere and Telomerase The telomere-telomerase hypothesis of aging and cancer is based on the findings that most human tumors have telomerase activity while normal human somatic cells do not. An emerging hypothesis is that the up regulation or re expression of telomerase is a critical event responsible for continuous tumor cell growth. In contrast to normal cells, tumor cells show no loss of average telomere length with cell division. Through this suggestion immortal ization ...
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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...
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Theory Of Evolution Life On Earth
1,611 wordsWe act like animals, we eat like animals, and we are animals. The many theories of evolution such as Darwin's theory of evolution prove to us that we choose to believe that we are not animals when we really are. Evolution is the sequential process of change over periods of time, which shapes and establishes the formation of modern man. In referring to evolution, the word means various changes. Evolution refers to the fabrication and development of life on earth. "Organic evolution" is the concep...
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Abnormal Cell Growth Leading To Cancer
1,619 wordsCancer is the second leading cause of death in the United States. Half of all men and one-third of all women in the U. S. will develop cancer during their lifetimes. Although it is common knowledge that cancer is generally inherited, this paper will further explore the causes and what happens on a cellular level when cancer develops in the human body. Basics of signal transduction Cell communication, or signal transduction, is simply the means by which cells in the body respond to signals coming...
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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...
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Sense Of Sight Cell Division
1,314 wordsThe concept of belief can be drawn from two distinct sources: what enters the body externally through the senses and what already resides internally in the individual. All five senses, seeing, hearing, touching, smelling, and tasting, are important in developing thoughts and ideas, but the sense of sight typically sets itself above the others in its effectiveness at creating strong and lasting beliefs. Many times in life, the sense of sight is used to give evidence that will determine what is be...
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White Blood Cells Endoplasmic Reticulum
1,733 wordsThe studies of Robert Hooke 1665 into a plant material would allow the determination of a pore like regular structure surrounded by a wall of which he called cells this in itself unbeknownst to him, was the discovery of the fundamental unit of all living things. In 1838 a botanist called Schleiden derived the theory The basic unit of structure and function of all living organisms is the cell. Over 150 years later this can be regarded as one of the most familiar and important facts within the bio...
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Adult Dna Cloning Human Cloning Technology
1,788 wordsThe possibility of human cloning was raised when Scottish scientists, led by Dr. Ian Wilmut at the Roslin Institute, created the much-celebrated sheep "Dolly." Being the first mammal ever cloned this aroused worldwide interest and concern because of its scientific and ethical implications. The feat, cited by Science Magazine as the breakthrough of 1997, also generated uncertainty over the meaning of "cloning" -- an umbrella term traditionally used by scientists to describe different processes fo...
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Gene Therapy Sexual Reproduction
1,087 wordsRELATIONSHIP BETWEEN HEREDITY AND DNA 1. DNA Polymerase Not Perfected by Evolution What are passed on by parents to their children are sets of genes in the chromosomes and these interact with the environment where they are found (Genetic Science Learning Center, 2005). Given the proper environmental conditions, the genes can be expressed fully in an organism. Offspring's do not inherit a trait but the genes that control the appearance of that trait. Genes can be fully expressed if the proper env...
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People With Down Syndrome Children With Down Syndrome
490 wordsDown syndrome is one of the most frequently occurring birth defects in the world. It is a chromosomal abnormality which results in 47 chromosomes, instead of 46, with an extra chromosome being 21. Because the majority of Down syndrome cases affect the twenty-first chromosome, it is commonly called trisomy 21. Down syndrome is usually caused by a cell division error, which is known as non-disjunction. This occurs when an embryo develops with three number 21 chromosomes instead of two. This excess...
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Children With Down Syndrome People With Down Syndrome
1,767 wordsDown Down Syndrome Down Syndrome Down syndrome is a combination of birth defects including some degree of mental retardation and characteristic facial features. It is also called trisomy 21. Down syndrome occurs when there is an abnormality in chromosome 21. It is found in approximately 1 out of 1000 all live births. Each year, 3, 000 to 5, 000 people are diagnosed with Down syndrome in the United States. The formal story began in 1866, when a physician named John Langdon Down first described a ...
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People With Down Syndrome Children With Down Syndrome
1,090 wordsDown Syndrome Introduction What is down syndrome, is it a birth defect or is it a disease. Well actually its a genetic disorder caused by the duplication of all or parts of the 21 st chromosomes. In our society is it fair to be treated differently just because you have genetic disorder. What causes them to be so different. Is it the way they look or is it the way they talk. What can a society do to those that are affected by this disorder. Is it possible to cure this disorder? As we further go t...
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Cell Division Prostate Cancer
1,104 wordsDiscuss social, ethical and biological issues associated with cancer Cancer is one of the most complex and devastating diseases that claim the life of many humans. Today there are one in three people worldwide who are affected by cancer, and almost 60 % of these people will almost certainly die. 7000 New Zealanders die every year from this disease. It is the second largest killer next to heart disease. Cancer does not just affect certain groups of people, it can affect anybody and it is not just...
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Plants And Animals Forest Floor
648 wordsAs you walk Mushrooms Mushrooms As you walk through a forest or even your backyard you may take a glance towards the ground and see a mushroom. Have you ever wondered what may be causing it to grow? What it is made of etc. ? Different mushrooms are made of different things, and different forms of growth allow their quickness abilities in growth. So what is a mushroom? A mushroom is the fruit of the mushroom plant, like the apple of an apple tree. The body of the mushroom in called mycelium and i...
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Cell Division Prostate Cancer
1,110 wordsSocial, Ethical And Biological Issues Associated With Social, Ethical And Biological Issues Associated With Cancer Cancer is one of the most complex and devastating diseases that claim the life of many humans. Today there are one in three people worldwide who are affected by cancer, and almost 60 % of these people will almost certainly die. 7000 New Zealanders die every year from this disease. It is the second largest killer next to heart disease. Cancer does not just affect certain groups of pe...
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