Down Syndrome Down syndrome is a genetic condition that typically causes some level of learning disability and a characteristic range of physical features. Most babies born with Down’s syndrome are diagnosed with the condition after birth and are likely to have: reduced muscle tone leading to floppine eyes that slant upwards and outwards a below average weight and length at birth Although children with Down’s syndrome share some common physical characteristics‚ they do not all look the same
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The genetic cause for Down syndrome is when a person inherits all or part of an extra copy of chromosome 21. Trisomy 21‚ the inheritance of an entire third copy of this chromosome‚ accounts for 95 percent of Down syndrome cases. Two other abnormalities each account for 2 to 3 percent of all cases. The first‚ translocation‚ takes place when a child inherits an extra piece of chromosome 21 attached to a different chromosome. The second‚ called mosaic Down syndrome‚ results when only some cells in
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Down syndrome is a congenital disorder arising from a chromosome defect‚ causing intellectual impairment and physical abnormalities including short stature and a broad facial profile. It arises from a defect involving chromosome 21‚ usually an extra copy also known as trisomy 21. It is quite rare to have a kid with Down syndrome. People say it all depends on your age. Which yes‚ it’s more likely to get a child with Down syndrome if you’re in your 30’s but there has been women in the age of their 20’s
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complete destruction of all organisms 8. List the sequence after respiratory bronchiole: terminal bronchiole‚ alveolar duct‚ alveolar sac‚ alveoli 9. Which of these causes athlete’s foot? Trichophytan 10. Which of these is the pathogenesis of Trisomy 21? Nondisjunction 11. Which of these has choline in it? Lecithin 12. Which of these causes a left shift in the bohr graph? CO poisoning 13. Milk secretion from the breast is caused by? Oxytocin 14. Which structure spans the whole cell membrane
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CHAPTER I THE PROBLEM AND ITS BACKGROUND Why is Education important for all Children? What is the goal of Education? The Experience of education in schools provides the opportunity for children to acquire skills for adult life and work. These experiences equip children to become successful adults. This goal applies as well with children without has special needs in Education like the child with autism‚ learning disability & Mental retardation which includes Down syndrome. Children with
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Multiple-Choice Questions 1. Chromosomes other than those involved in sex determination are known as a. nucleosomes b. heterosomes c. alleles d. autosomes e. liposomes Section: 11.1 Bloom’s: knowledge Ans: d 2. Sex chromosomes a. determine sex b. vary from one sex to another c. carry some genes that have nothing to do with sex d. were unknown to Mendel e. all of these Section: 11.1 Bloom’s: knowledge Ans: e 3. Which of the following designates a normal human female?
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Genetic counseling is the process that evaluates family history‚ ordering genetic test and evaluating medical records. Genetic counseling is a service that helps the people to translate scientific information into practical information. Genetic tests determine if there are gene-carrying traits or inherited disorders. Genetic tests done by testing small amount of body tissue or blood sample. The gene is made up of DNA sequence molecule‚ which is building blocks‚ the hereditary grouped in specific
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during meiosis 5.cytogenetic maps: a chart of a chromosome that locates genes with respect to chromosomal features distinguishable in a microscope 6.deletion: change to a chromosome in which a fragment of the chromosome is removed 7.down syndrome: trisomy 21 8.duchenne muscular dystrophy: deleted dystrophin gene (X-linked recessive) 9.genetic map: an ordered list of the genetic loci along a particular chromosome 10.genetic recombination: the regrouping of genes in an offspring that results in a genetic
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However‚ sometimes embryos are formed with too many or too few chromosomes‚ which is known as aneuploidy. Embryos with aneuploidy may be born with conditions like Down syndrome or Trisomy 21. In other cases‚ aneuploidy results in a miscarriage. Preimplantation genetic screening can determine if an embryo has the correct number of chromosomes to develop into viable pregnancy and a healthy baby. Not only does PGS allow our physicians
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Mitosis and Meiosis I. These two processes function to pass chromosomes from one cellular generation to the next in a very carefully controlled manner. II. Mitosis and Meiosis are both correctly described as nuclear division; they are never correctly called cell division‚ or any kind of reproduction. It is possible (and often quite normal) for nuclei to divide when cells don’t. And organisms reproduce; nuclei and cells divide. III. Mitosis A. Mitosis is the division of a nucleus
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