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The fragile X: a scanning electron microscope study.
  1. C J Harrison,
  2. E M Jack,
  3. T D Allen,
  4. R Harris


    Scanning electron microscopy (SEM) has been used to study the fragile X chromosome. The fragile site appears as an isochromatid gap in the majority of cases, confirming light microscope (LM) observations. SEM has allowed a more precise location of the fragile site to the Xq27 . 3 region.

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