This is a short summary of the paper
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Down Syndrome 4
Start of Term Paper
Down syndrome is a chromosomal abnormality. It is the most frequent
form of mental retardation and is characterised by well-defined, distinctive
phenotypic features and natural history. An error in cell development results
in forty-seven chromo .... Middle of Term Paper
... were thought then
to have an arrested development. This ethnic insult came under fire in the
1960s from Asian genetic researchers, and the term was dropped from
scientific use. Instead, the condition became "Down's syndrome." In the
1970s, an American revision of scientific terms changed it simply to "Down
syndrome," while it still is called "Down's" in Europe.
In the first part of the twentieth century, there was much speculation of
the cause of Down syndrome. The first people to speculate that it might be
due to chromosomal abnormalities were Waardenberg and Bleyer in the
1930s. But it wasn't until 1959 that Jerome Lejeune and ... |
| Number of Words: 1135 |
Approximate Pages: 5 |
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