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Downs syndrome is caused by having 3 copies, trisomy, of chromosome 21 in your DNA. This can be random, causes are often unknown although it is associated with increased maternal age. Symptoms include characteristic facial features, varying degrees of mental retardation/learning difficulties, a happy and sociable disposition, increased susceptibility to certain heart conditions and other medical conditions and many others. Best to Google it for a very quick overview.
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What is the meaning of syndrome?
Generally speaking, a syndrome is a condition that has a specific array of symptoms. According to the Encyclopedia of Phobias, Fears, and Anxieties (Second Edition), a syndrome is "a group of symptoms that occur together that constitute a recognizable condition", and that "'syndrome' is less specific than 'disorder' or 'disease', which generally imply a specific cause or disease process".
The genetic disorder characterized by varying degrees of mental retardation is known as?
Down syndrome is the genetic disorder characterized by varying degrees of mental retardation. It is caused by the presence of an extra copy of chromosome 21. Symptoms of Down syndrome can vary widely, but intellectual disability is a common characteristic.
What is a chromosomal disorder that could result from nondisjunction?
Disorders, such as Down's Syndrome, are caused by nondisjunction.
Can hole in the heart skip a generation and be the cause of down syndrome in a grandchild?
can not be passed from generation to generation
Which genetic disorder does an extra chromosome cause?
An extra chromosome can cause genetic disorders such as Down syndrome, which is caused by an extra copy of chromosome 21. This leads to developmental delays, intellectual disabilities, and certain physical characteristics.
When was the Down Syndrome recognized?
The cause of Down Syndrome was discovered in 1958 by Jérôme Lejeune.
Is down syndrome cause by translocation?
It can be.
Is there cure for down syndrome?
No, there's no cure, but there are treatments to control the symptoms.
Is Down Syndrome the same as Marfan Syndrome?
No. Down is caused by an extra chromosome while Marfan is due to a mutation in one or more genes.
Does smoking marijuana cause Down syndrome?
No.
Does Down Syndrome causes childlike behavior?
yes it causes childlike symptoms
If a pregnant woman takes Procardia can this cause her to bear a baby with Down syndrome?
Down syndrome is a genetic defect and is the result of an extra chromosome at the time of conception. The use of Procardia (or any other drug) does not cause Down syndrome.
When was Down syndrome first identified?
According to Columbia Encyclopedia, the symptoms of Down syndrome were "first described in 1866 by an English physician, J. Langdon Down." Down syndrome - albeit without this particularly moniker - has been known for many hundreds, if not thousands, of years. It was usually called Mongolism in recent centuries in the UK. Dr. John Langdon Down was the one who did much research on the subject, and the symptoms described by him have been renamed "Down syndrome." To read more about Down syndrome on Answers.com, click on the Related Link.
How does the cause of cystic fibrosis differ from the cause of down syndrome?
the genetic conditions
How does the cause of down syndrome differ from the cause of cystic fibrosis?
the genetic conditions
Can smoking cigarettes cause Down syndrome when pregnant?
yes
Does antibiotics cause down syndrom?
Down syndrome is not caused by a bacterial infection therefore the answer to your question is no. Down syndrome is caused by an extra chromosome in the cell nucleus.
