APPENDIX 1 EXAMPLES OF QST*R TRACES FROM RETROSPECTIVELY COLLECTED TISSUE SAMPLES AND AMNIOTIC FLUID SAMPLES FROM NGRL (WESSEX) 21 CQ320: Example of Normal Karyotype 22 Example of QST*R Trisomy report for Sample CQ320 (Normal) 23 Ret 14: Example of Trisomy 21 24 Example of QST*R Trisomy report for Sample ret 14 (Trisomy 21) 25 Ret 24: Example of Trisomy 18 26 Example of QST*R Trisomy report for ret 24 (Trisomy 18) 27 CQ230I: Example of Trisomy 13 28 Example of QST*R Trisomy report for Sample CQ230I (Trisomy 13) 29 CQ248: Example of Triploid 30 Example of QST*R Trisomy report for Sample CQ248 (Triploid) 31 APPENDIX 2 EXAMPLES OF QST*R TRACES FROM UNUSUAL PRENATAL SAMPLES SUBMITTED FROM OTHER UK LABORATORIES 32 Somatic microsatellite mutation at D21S11 Submicroscopic duplication at D13S634pat Primer binding site polymorphism at D18S391 33 BRL24: Example of female mole 34 BRL15: Example of a mosaic triploid sample 35 ABN 14: Example of maternal cell contamination supplied by lab1 36 BGH 5: Example of maternal cell contamination supplied by lab2 37 BRL 3: Example of a sample where some markers have amplified more efficiently than others – interestingly this is independent of the molecular weight of the marker products. 38 APPENDIX 3 EXAMPLES OF QST*RXY TRACES FOR A VARIETY OF SEX CHROMOSOME ANEUPLOIDY 39 Ret 4: Example of a normal male 40 CQ651: Example of a normal female 41 Ret 18: Example of sample with a karyotype of 45,X 42 CQ600: Example of sample with a karyotype of 45,X where Y chromosome sequences (circled in red) have been amplified at a low level (c. 10%) 43 CQ449: Example of sample with a karyotype of 47,XXX 44 Ret 2: Example of sample with a karyotype of 47,XXY 45 Ret 10: Example of sample with a karyotype of 48,XXYY 46 Ret 85: Example of sample with a karyotype of 48,XXXY 47 Ret 5: Example of sample with a karyotype of 49,XXXXY 48 APPENDIX 4 Examples of QST*R13, QST*R18 and QST*R21 traces 49 CQ348: Example of sample tested with QST*R13 50 CQ250: Example of sample tested with QST*R18 51 CQ546: Example of sample tested with QST*R21 52
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