Objective Molecular cloning and sequencing of the human nerve growth factor gene.
目的克隆人神经生长因子基因编码区。
This is because molecular mechanism underlying animal cloning is not well known.
问题的根源在于对克隆基础的分子机理缺乏了解。
This is because molecular mechanism underlying animal cloning is not well known.
问题的根源在于对克隆基础的分子机理缺乏了解。
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