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What age does down syndrome start to occur?
Down syndrome is something you are born with; it is not something that will suddenly "appear."
What population down syndrome is affected?
.
What is the prevalence of Down Syndrome in the current population?
In the US, there are currently almost 500,000 people with Down Syndrome.
Why is it that people with down syndrome always stare at food?
people with down syndrome are often riddled with vision impairments...
Down Syndrome most often occurs when-?
Down Syndrome often occurs when chromosomes fail to separate properly during meiosis.
When does Down syndrome most often occur?
Down's syndrome is increased with advanced maternal age, which is defined as more than 35 years of age.
What is the population of people with Down Syndrome?
1 out of every 691 live births
What percentage of the Down syndrome population has atlantoaxial instability?
0-9 purcent
What are the statistics of a mother having a child with down syndrome?
For the United States, estimated as the fraction of people in the population with the syndrome, ~1/5500.
How was Down syndrome identified?
Genetic testing, the presence of an extra copy of chromosome 21, a condition often referred to as trisomy 21 is indicative of Down Syndrome.
Can a child with down syndrome live as long as a normal person?
Yes. Along with the Down they often have other physical problems such as enlarged hearts and immune problems, so they often die of something other than Down syndrome directly. Many die in their teen or early adult years.
How are cells of a person with Down syndrome different from those of a person without the disorder?
In Down syndrome, a person's cells have an extra copy of chromosome 21. In other words, instead of a pair of chromosomes, a person with Down syndrome has three of that chromosome. Down syndrome most often occurs when chromosomes fail to separate properly during meiosis. People with Down syndrome have a degree of mental retardation. Heart defects are also common, but can be treated.
