Nonrandom segregation of nucleolar organizing chromosomes at mitosis?

Abstract

The random assortment of nonhomologous chromosomes at meiosis is one of the fundamental tenets of genetics, to which few exceptions have been documented. The segregation of mitotic chromatids is believed to be similarly random. The discovery of a new exception to this rule, that human nucleolar organizing chromosomes remain associated with one another, held in the same lateral orientation, for several mitotic cycles was made.