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Figure Caption
Fig. 3 Proliferating cells leave the blastema within 6 hr of dividing. Regenerating fins were treated with BrdU and harvested immediately (A-C), following a 2-hr chase in fresh water (D-F), or following a 6-hr chase in fresh water (G-I). Harvested fins were processed for cx43 in situ hybridization (left) and BrdU detection (middle). Right: Overlap of bright field and fluorescence. Brackets indicate the cx43-positive domain, revealing that the majority of BrdU- labeled cells overlap with cx43. By the 6-hr chase, very few BrdU-positive cells remain in the cx43-positive region.
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