assay assay in-situ hybridization assay ISH in situ hybridization in situ hybridization ISH PMID:9021518 An assay that localizes a specific DNA or RNA sequence within a portion or section of tissue using artificially induced nucleic hybridization. Marcus Chibucos Philippe Rocca-Serra Sirarat Sarntivijai An assay that localizes a specific DNA or RNA sequence within a portion or section of tissue using artificially induced nucleic hybridization. in-situ hybridization assay PMID:9021518 Use of in situ hybridization to examine gene expression in the embryonic, neonatal, and adult urogenital system. PMID:22639265 ready for release