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What is the frequency of carriers of Down syndrome in the population?
Wiki User
∙ 14y ago
Down syndrome is an abnormality of the chromosomes and not genic in origin .This occurs in one of every two thousand newborns. People do not "carry" this and the child is born with three rather than two chromosomes numbered 21. The mother and father of the child are normal except in the rare case of a woman with Down syndrome who gives birth to a child; the copying or replication error occurs either in the germ cell or in the initial cell division of the embryo.
Wiki User
∙ 14y ago
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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.
Frequency of Down Syndrome Per Maternal Age?
http://www.ds-health.com/risk.htm
What is the frequency of Down syndrome compared to other genetic diseases?
That is hard to say because the frequency of Down syndrome if a function of maternal age so it is not fixed. A mom between 20 and 24 years old has a 1/ 1400 risk of having a child with Down syndrome. A mom who is 45 or older has a 1/25 risk. Overall, it is fair to say Down syndrome is one of the most common and best known genetic disease. Other genetic disease such as Cystic Fibrosis, hemochromatosis are also common. The frequency of all these things varies in different populations as well as age. So the question is quite hard to answer without isolating a specific population.
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 many people in north America have down syndrome?
There are approximately7,222,222 people with down syndrome in the world ( if you compare the stat 1 in every 800-1000 births to the world's population of 6.5 billion).
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.
