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What is Down syndrome?
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Down syndrome is a genetic condition that occurs in one in every
800 to 1,000 live births worldwide. It affects people of all
ages, races and economic levels and is the most frequently
occurring chromosomal disorder. It occurs when there are three,
rather than the usual two, copies of chromosome 21 in every cell
of the body. Instead of 46 chromosomes, a person with Down
syndrome has 47.
It is this additional genetic material that alters the course of
development and causes the characteristics associated with the
syndrome. Down syndrome affects more than 350,000 people in the
United States alone. Recent advances in our understanding of
Down syndrome have resulted in dramatic improvements in the life
span and potential of those affected.
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Talking Points to use when sharing with family, friends or
contacts.
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