an alternative method , based on the incorporation of bromodeoxyuridine ( brdurd ) into the dna of proliferative cells , followed by differential staining with the fluorescence-plus-giemsa method , was used to identify 3 classes of lymphocyte nuclei : ( a ) small darkly stained nuclei , ( b ) large , reddish-colored nuclei with an apparent nucleolus , and ( c ) large , bluish-colored nuclei .
C0007609
nucleolus
C0007610
nuclei