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Are there environmental factors or influences for down syndrome?
Wiki User
∙ 10y ago
No.
Wiki User
∙ 8y ago
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What is the cause of tourettes?
The exact cause of Tourette's syndrome is actually unknown. Studies have nailed down that genetic and environmental factors are involved when a person has this condition though.
Can Down Syndrome be prevented by testing couples blood?
No. Parents of Down Syndrome typically are normal genetically and there is no test for parents to determine the possibility of a Down Syndrome offspring. There are no known external factors that are known to contribute to Down Syndrome. It is possible to test for Down Syndrome in the fetus.
Hereditary and environmental factors?
Hereditary factors refer to genetic traits passed down through generations, while environmental factors are external influences that can impact an individual's development and traits. Both play a role in shaping an individual's characteristics, behaviors, and overall well-being.
What are the chances that a sibling of a Down syndrome brother will have a baby with Down syndrome?
After having one child with Down Syndrome, the likelihood of having another is about one percent. If the first child's Down Syndrome is due to translocation trisomy 21, the likelihood of another Down Syndrome child increases. As far as researchers know at this point, Down Syndrome is not attributed to the parents' behavior prior and/or during pregnancy or any environmental factors. The incidence of Down Syndrome does rise if the mother is older than 35, but it does not account for a large number of Down Syndrome children. Since more women are having children at ages younger than 35, then number of babies born with the syndrome is higher in younger age groups.
Is down syndrome caused by pre-natal influences?
Only in the case that it occurs in abnormal cell division. Nothing outside in the environment is at fault.
What are the factors of an environmental scan?
Environmental Scans are essentially a close look at the factors that effect an organization. It can be broken down into a SWOT Analysis. Stregths, Weaknesses, Opportunities, and Threats. The stregths and weaknesses are a look at INTERNAL factors and the opportunities and threaths are EXTERNAL factors.
What family risk factors are there?
having a family history of AD, Down syndrome, or Parkinson's disease
Why do people get down syndrome is it purely genetic?
Down syndrome is purely genetic. There are no known environmental causes of the disorder. It is not a disease that is passed from parent to child. It is simply an disorder when the chromosomes split during cell division during development. The mayoclinic describes the causes: http://www.mayoclinic.com/health/down-syndrome/DS00182/DSECTION=causes
What is the genetic disorder for having three 21 chromosomes?
down syndrome
What is a chromosomal disorder that could result from nondisjunction?
Disorders, such as Down's Syndrome, are caused by nondisjunction.
What condition results when a child is born with an extra chromosome on the third pair?
Down syndrome
What is the correct spelling 'Down syndrome' or 'Down's syndrome'?
Down syndrome is generally the preferred spelling, although Down's syndrome is sometimes used in American sources.
