将常温下培养洋�的装置移到冰箱的低温室4℃内再培养一段时间取根尖制成装片用显微镜观察细胞中染色体数目的变化该实验的目的是验证 Ii Template




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tomski将常温下培养洋�的装置移到冰箱的低温室4℃内再培养一段时间取根尖制成装片用显微镜观察细胞中染色体数目的变化该实验的目的是验证 ii coloring