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Down Syndrome 2
Part 1 of Paper ....mal abnormality
which results in 47 chromosomes, instead of 46, with an extra
chromosome being 21. Because the majority of Down syndrome
cases affect the twenty-first chromosome, it is commonly called
"trisomy 21."
Down syndrome is usually caused by a cell division error,
which is known as non-disjunction. This occur.... Part 2 of Paper .... sporadically, with no bearing on maternal age. These two types
of this syndrome are very rare, being responsible for only 6 or
7 percent of all cases.
Children with Down syndrome are at high risk for health
problems. These include congenital heart defects, respiratory
problems, increased suseptibility to infections, and/or
obstructed digestive tracts. Leukemia has a greater frequency
of appearance among children with Down syndrome, and adults are
at an increased risk for Alzheimer's .... |
Number of words: 474 - Approximate pages: 2 |
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