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Figure 4 | BMC Genomics

Figure 4

From: Utilization of a labeled tracking oligonucleotide for visualization and quality control of spotted 70-mer arrays

Figure 4

Use of third-color tracking oligonucleotide for quality control and data filtering. Pre-hybridization fluorescein image (A) and post-hybridization Cy3/Cy5 image (B) of M. tuberculosis array possessing the tracking oligonucleotide. Open squares; denote elements where oligonucleotides were not deposited on slide surface. Open circles; denote elements where target-specific M. tuberculosis oligonucleotides were present in low concentration. Black arrowheads, negative controls containing tracking oligonucleotide only.

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