How are rRNA Genes Visualized in Histological Studies?
In histological studies, the activity of rRNA genes can be visualized using techniques such as silver staining, which highlights the nucleolar organizer regions (NORs). Fluorescence in situ hybridization (FISH) can also be employed to label and visualize rRNA genes. Additionally, immunohistochemistry can be used to detect proteins associated with rRNA gene transcription, such as RNA polymerase I.