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Mapping 250K/500K SNP assay

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viii GeneChip® <strong>Mapping</strong> <strong>500K</strong> Assay Manual<br />

TROUBLESHOOTING AND ASSISTANCE 168<br />

Troubleshooting Decision Tree 168<br />

Problems and Solutions 171<br />

Meaning of Error Messages 174<br />

Other Problems and Solutions 176<br />

Instrument Specifications 178<br />

CHAPTER 7 Analysis Workflow 179<br />

INTRODUCTION 181<br />

SOFTWARE REQUIREMENTS 181<br />

ANALYSIS WORKFLOW 181<br />

ANALYSIS 182<br />

Output 184<br />

Report 186<br />

GTYPE Additional Functionality 188<br />

Import Sample Attributes 188<br />

File Sets 189<br />

Examining the Raw Probe Data 190<br />

Export 190<br />

NetAffx <strong>SNP</strong> Annotation 193<br />

ASSESSING DATA QUALITY 194<br />

Call Rate 195<br />

Detecting Sample Contamination 197<br />

Oligonucleotide Controls 200<br />

Sample Mismatch report 200<br />

B2 Oligo Performance 203<br />

Concordance with Reference Genotypes on Reference<br />

Genomic DNA 103 204<br />

Downstream Analysis Considerations 206

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