Abstract
The aim of molecular biology studies on medically important fungi is to connect the functions of proteins to their activities through identification of the genes responsible. In this review we focussed on the electrophoresic karyotypes or the banding patterns of chromosomal DNAs separated by pulsed field gel electrophoresis in Candida albicans which are variable among the strains. We also described the isolation and the characterization of a repetitive sequence RPS which might be involved with chromosome length polymorphism via chromosomal rearrangements.