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Fluorescence micrograph of M091 chromatin fragments labeled with Alexa647-labeled histone H3 probes. DNA is stained with YOYO-1. (A). Fluorescence micrograph taken at 475 nm excitation. (B). Fluorescence micrograph from the same area taken at 620 nm. Histones H3 (shown in false red Figure 4B) are colocalized with DNA (shown in false green Figure 4A).
