Mutation may be defined as any change occurred in the DNA sequence‚ which changes the gene function regardless of the morphological or physiological results. It is permanent‚ hereditary and ruled by Mendel’s laws. Such chemical changes are constant and occur during the replication stage and they can be quickly fixed; however‚ a mutation may occur if not repaired. They can affect autosomal genes (dominant or recessive) or be linked to sex chromosomes. Mutation can result in several different types
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uncles‚ Rauj Vang‚ also has dementia/Alzheimer’s at a younger age than my grandpa. Moreover‚ my dad’s youngest brother‚ Ger Vang‚ was the only one born with Down syndrome (DS)‚ which is rare in the family tree. Now he was diagnosed with type 2 Diabetes. Next‚ my maternal grandparents had no health issues at birth‚ but they
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goes wrong examples of genetic factors are Down syndrome and autism. Down syndrome is caused by a chromosome defect which involves having an extra 21st chromosome‚ long term effects of down syndrome is a shortened life expectancy and heart problems‚ another example is a person who suffers from Down syndrome are more at risk of contracting cancer the most common being leukaemia which is the cancer of the blood. There are also short term effects of Down syndrome and one example is development delays but
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Down Syndrome and the Models of Disability Eli Lowham University of Wyoming Having a disability is less taboo and increasingly common in a large proportion of the U.S. population today (Smart & Smart‚ 2006). Speech pathologists in today’s continually expanding world often come across a child with a language disorder stemming from a genetic origin. The most common disorder is Down syndrome. Down syndrome occurs in approximately 1 in 700-1000 births and is the most common genetic cause of intellectual
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monosomic cell has one missing chromosome (2n - 1) = usually lethal except for one known in humans: Turner’s syndrome (monosomy XO). [pic] The frequency of nondisjunction is quite high in humans‚ but the results are usually so devastating to the growing zygote that miscarriage occurs very early in the pregnancy. If the individual survives‚ he or she usually has a set of symptoms - a syndrome - caused by the abnormal dose of each gene product from that chromosome. [pic] 1. Human disorders due to
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Section B: Specific Additional Requirements • Describe 3 examples of syndromes/conditions of your choice. • Describe 2 strategies for each example described above. These strategies could be medical‚ nutritional‚ educational‚ social or emotional which are meant to meet the children’s additional needs. Down Syndrome Down Syndrome‚ also referred to as Trisomy 21‚ is a condition which causes delays in the development of children‚ both mentally and physically‚ due to extra genetic material
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time of birth. - An early viral infection. - Alcohol or poison abuse such as fatal alcohol syndrome. - There is evidence that premature birth leads to the failure of the neurons in the brain to form adequate connections. This has an effect on the brains ability to process information. - It may follow brain damage caused by illness‚ stroke or
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The definition of Intellectual and developmental mental disabilities intellectual disability is a disability characterized by significant limitations both in intellectual functioning and in adaptive behavior‚ which covers many everyday social and practical skills. This disability originates before the age of 18. Intellectual functioning—also called intelligence—refers to general mental capacity‚ such as learning‚ reasoning‚ problem solving‚ and so on. One criterion to measure intellectual functioning
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Just because they are disabled doesn’t mean they are not a part of the whole or that they cannot possibly make a positive difference in the world. As the author of the article‚ “A Child with Down Syndrome Keeps His Place at the Table” points out that we have made a lot of progress for children with Down syndrome in the United States. Most of that progress he points out is their rights to go to school. They have progressed from just being recognized as needing to be “somewhere special”‚ a place of horrific
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who drinks and smokes during pregnancy will have more of a chance of having a person develop Down syndrome. I even thought this. But in my studies on this subject i found that‚ to my surprise‚ it is a genetic disorder. My cousin who had had Down syndrome had it because it was a chromosomal disorder. Not an environmental or self-medicated teratogen played a part on him developing trisomy 21(Down syndrome). On the other hand‚ environmental and self-medicated teratogens played a huge part on his foetal
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