Are there any risk factors for having a child with Edwards syndrome? - edwards syndrome more condition_symptoms
Trisomy 18 or Edward's syndrome is genetically determined and usually occurs before conception.
When a gamete (either sperm or egg) has two chromosomes 18 years instead of one. This happens in meiosis. Then, when the fertilized egg cells of 18 years, with two chromosomes of a gamete with a normal chromosome 18 a person, the zygote (the cell will be formed immediately after fertilization), three chromosome 18 have it ... Trisomy.
It's just ... and unfortunately the prognosis is very poor of this syndrome.
Friday, November 6, 2009
Edwards Syndrome More Condition_symptoms Are There Any Risk Factors For Having A Child With Edwards Syndrome?
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Edwards syndrome (also known as trisomy 18) is a syndrome associated with the presence of extra-third (associated) number 18 chromosomes.
A prenatal diagnosis of trisomy 18 with amniocentesis and chromosome studies on amniotic cells possible. Parents of a child with this syndrome should be examined, chromosomes, because they are more at risk that a child are with trisomy 18.
Trisomy 18 is a syndrome common faily affects 1 in 3000 live births and affects more girls than boys.
Most cases of Edwards syndrome or trisomy 18 is not hereditary, but random events that occur during cell division in an event called nondisjunction results in reproductive cells of an abnormal number of chromosomes.
There is a small part of the mosaic (a condition in which tissue of genetically different types occur in one and causing the same person) by postzygotic nondisjunction or anaphase GAL, and repression.
Factors May whether to have a child born with this growth, maternal age, geographic area, changes with the seasons, the sex of children (women are more likely to trisomy 18) and the environment.
Hope this helps. WLIT
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