This high magnification
image shows how the basic dye hematoxylin stains the
cell nuclei. Hematoxylin stains condensed chromatin,
which is largely condensed around the inner surface nuclear envelope, although
smaller amounts can be seen throughout the nucleus.
It also stains nucleoli,
which are the large purple-stained bodies near the center of the nucleus that
are rich in DNA and RNA. The unstained areas of the nucleus are
occupied by euchromatin, an uncondensed form
of chromatin, which does not stain darkly enough to be seen.
