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Down Syndrome: An Informative Essay
Part 1 of Paper
....ed when meiosis occurs and an error occurs in the
cells development. The reason for this defect is often because the parent is
over 40 or for some other reason their meiosis is not "Up to par."
The actual defect is an extra chromosome is developed during cell
development. The abnormal development results in 47 chromo.... Part 2 of Paper
....e a Down Syndrome baby even though there was never any sign of
the disorder in her pedigree. There are however, three different kinds of Down
Syndrome. 95% of Down Syndrome babies have Trisomy 21. This is the presence of
extra genetic material on the 21st pair of chromosomes. Around 4% have what is
called Translocation. This is where the extra chromosome 21 decided to break
away and attach itself to another chromosome. The last 1% is made up of those
with Mosaicism. This is where some cells have.... |
| Number of words: 468 - Approximate pages: 2 |
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