larval brain ganglia of drosophila nasuta were cultured in vitro in the presence of 5-bromodeoxyuridine for 1 or 5 h at 24 degrees c and the air-dried chromosome preparations stained by the hoechst 33258-giemsa technique to reveal bromodeoxyuridine induced sister chromatid differentiation .
C0008633
chromosome
C1519334
sister chromatid