G-Band Staining of Mouse Embryo Chromosomes by Urea Treatment

Abstract

Chromosome preparations of mouse morulae and blastocysts derived from in-vitro fertilization were made by a new air-drying method, and then subjected to various methods of G-band staining. Excellent G-band figures of embryo chromosomes were obtained by a modified method of urea treatment. The G-band method is shown in the present paper.