Pachytene in MEIOSIS ,the stage in mid-prophaseⅠ that is characterized by the contraction of paired homologous chromosomes.
Pachytene in MEIOSIS ,the stage in mid-prophaseⅠ that is characterized by the contraction of paired homologous chromosomes.
粗线期：减数第一次分裂前中期中的一个阶段，以配对同源染色体浓缩为特征。