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Gaokao Biology Practice Question

洋葱根尖和小鼠骨髓细胞都能用于观察细胞有丝分裂, 比较实验操 作和结果, 叙述正确的是

  1. A.都需要用盐酸溶液使细胞相互分离
  2. B.都需要用低倍镜找到分裂细胞再换高倍镜观察
  3. C.在有丝分裂中期都能观察到染色体数目加倍
  4. D.在有丝分裂末期都能观察到细胞板

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