At metaphases ⅰ and ⅱ there showed a small number of chromosomes scattered outside their equatorial plate; 中期Ⅰ和中期Ⅱ,少数细胞可见赤道板外染色体;
Clear G bands were obtained in the prometaphase and metaphases of mitotic chromosomes in rye ( secale cereale) by means of the advanced ASG method. 用改良ASG法在黑麦(Secalecereale)有丝分裂早中期、中期对染色体进行了G-带分析,并作了G-带带型和变动性分析。
Maternally biased chromosome conversion, including fragment conversion and whole chromosome conversion, were revealed in about 2% of all metaphases. 约2%的分裂相出现母本偏向性染色体转变。类型包括染色体片段,及整条染色体的遗传转变。