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Free research papers and essays on topics related to: fragile x syndrome

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  • Fragile X Syndrome - 623 words
    FRAGILE X SYNDROME Fragile 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 either her father or mother. Interestingly enough, more boys than girls are affected by this disease. Fragile X syndrome appears in children of all ethnic, racial, and eco ...
    Related: down syndrome, fragile, fragile x syndrome, syndrome, northern california
  • Autism - 701 words
    Autism Autism is a disorder that impairs the development of a person's capacity to interact with, communicate with, and also maintain regular "normal" bonds with the outside world. This disorder was described in 1943 by Leo Kanner, an American psychologist. Autism is considered one of the more common developmental disabilities, and appears before the age of three. It is known to be four or five times more common in males than in females. It most cited statistic is that autism occurs in 4.5 out of 10,000 live births. The estimate of children having autistic qualities is reported to be 15 to 20 out of 10,000. The gender statement noted before is not uncommon, since many developmental disabilit ...
    Related: autism, limbic system, fragile x syndrome, positive reinforcement, american
  • Diagnostic Summary Paper - 707 words
    Diagnostic Summary Paper Diagnostic Summary Paper AUTISM Autism is a disorder that impairs the development of a person's capacity to interact with, communicate with, and also maintain regular normal bonds with the outside world. This disorder was described in 1943 by Leo Kanner, an American psychologist. Autism is considered one of the more common developmental disabilities, and appears before the age of three. It is known to be four or five times more common in males than in females. It most cited statistic is that autism occurs in 4.5 out of 10,000 live births. The estimate of children having autistic qualities is reported to be 15 to 20 out of 10,000. The gender statement noted before is ...
    Related: diagnostic, summary, federal law, limbic system, auditory
  • Genetic Screening - 1,580 words
    Genetic Screening Genetic screening, also known as preimplantation genetic diagnosis (PGD), is a newly emerging technology that has brought with it much controversy. PGD involves the in vitro fertilization of an embryo. The embryos are allowed to develop to a 6 to 10 cell stage, at which point one of the embryonic cells is removed from each embryo and the cellular DNA is analyzed for chromosomal abnormalities or genetic mutations (Botkin, 1998). In doing this, it can be determined which embryos will be most likely to implant and germinate successfully in the uterus. PGD is a complicated, technologically sophisticated process. It is a union of in vetro fertilization technology and molecular b ...
    Related: genetic, genetic screening, genetic testing, screening, colon cancer
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