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Figure 3 | Molecular Cytogenetics

Figure 3

From: On the origin of trisomy 21 Down syndrome

Figure 3

Examples of FISH results on fetal ovarian cells using two chromosome 21-specific probes. a) Location of the probes near the end of the long arm of chromosome 21. b) Normal cell nucleus showing two dual chromosome 21-specific signals. c, d) T21 cell nuclei showing three dual chromosome 21-specific signals.

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