NCIt definition : Chromosomal bands observed after staining with specific dyes. The band pattern is
the result of differential interactions between the dye and nonadjacent chromosomal
regions.;
Alternative definition : NCI-GLOSS: When chromosomes at a particular stage in cell division are stained using
one of several laboratory techniques, a specific pattern of light and dark stripes
(bands) appears when the chromosomes are viewed through a microscope; the banding
pattern assists in assigning each chromosome its particular number and evaluating
its structure.;