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The salivary gland in intact live larvae expressing His2B under endogenous promoter (Red), and Rpb3-GFP under Mef2Gal4 driver imaged under the microscope. (A) His2B-RFP representing H2B-associated chromatin, (A’) Rpb3-GFP representing Pol II-associated chromatin, and A” their merged image. (B–B”) are corresponding enlargements of the rectangle in A”.
