Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Immunoelectron microscopic localization of BrU (mouse antibody) in BrUTP-microinjected T24 cells after 20-min incubation. Gold marker labels the perichromatin region in the nucleoplasm and the dense fibrillar component in the nucleolus (N). Condensed chromatin areas (C) and the interchromatin region (contrasted areas) are mostly devoid of label. Bar, 1.0 μm.
