Fig. 3.

Characterization of Xi chromatin territories at interphase. All images are of the RPE1 cells and represent typical observations made in at least four independent female cell lines. The white box in each interphase nucleus (top row) represents the Barr body region examined at higher magnification in the other images below. The feature examined by indirect immunofluorescence is labeled above each image. Overlapping red and green signals appear yellow.