Possible location of the gene of mucoviscidosis (pancreatic cystic fibrosis) in chromosome 21]

On the basis of the data available in the literature pertaining to the relatively high frequency of mucoviscidosis in children affected with Down's syndrome a hypothesis is advanced concerning the possible location of the mucoviscidosis gene in the chromosome 21. The author's own preliminary data are presented. Approaches to the verification of this hypothesis are described.