title: Sex Chromatin Patterns and the Lyon Hypothesis.
abstract: Polyploid human cells in culture often have paired sex chromatin masses. They are neither chance juxtapositions of randomly distributed X chromosomes nor manifestations of a propensity for pairing. The pairs are characteristic of the first polyploid interphase. They are thought to reflect the persistent differentiation of X chromosomes, as proposed in the Lyon hypothesis.
authors.forename: R
authors.initials: R
authors.lastname: Demars