有丝分裂的

There were detestably close synapses between homologous chromosomes during thellateprophase and early metaphase in mitosis of somatic cells.

发现在其有丝分裂的晚前期、中期阶段，源染色都在进行联会。

Human Peripheral blood exposed with tritiated water at variousdoses for 54 hr was examined to observe the chromosome and chromatid abe-rrations at metaphases in the first mitosis of lymphocytes.

将人外周血在不剂量的氚水中养54小时,观察到淋巴细胞第一次有丝分裂中期的染色及畸变。