title: Nondisjunction: localization of the controlling site in the maize B chromosome.
abstract: Nondisjunction of the B chromosome in maize has been considered to be controlled by heterochromatin in its long arm. Experiments reported here indicate that the control site actually lies in a short, relatively euchromatic segment distal to the major heterochromatin of the long arm.
authors.affiliation: Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada.
authors.forename: E J
authors.initials: EJ
authors.lastname: Ward