Pusa hispida (Ringed seal)

Abstract

These karyotypes are gifts of Dr. U. Arnason, Lund, Sweden and come from fibrous tissue cultures. Two males and three females were studied with similar results. A marked secondary constriction is found in the short arms of the first autosome which contains a broad C-band. These karyotypes. Q-bands and C-bands have been published by Arnason. The X was identified in autoradiographs of female cells and comprises 5.5% of the female haploid set; the Y is 2% (A + X). Tiny C-bands are limited to the centromeres, except in the constriction of the first autosome.