Fig. 5. In-situ hybridization of Nowa transcript in whole mounts of Hydra. (A) Overview of an animal with a small bud showing expression of Nowa in the body column but not in the tentacles. (B) Body column with Nowa-mRNA-positive cells. (B') Enlargement of B with Nowa-mRNA-positive nematoblast or nematocyte nest indicated by an arrow. An adjacent nest with capsules but no Nowa expression is indicated by an arrow and asterisk. Bars, 100 µm (A); 50 µm (B); 10 µm (B').