nucleotide chain

It gives the automatic generation algorithm based on three-dimensional model , which uses base pairs and nucleotide chain to model .

针对三维建模和展示研究平台存在的问题，给出了基于三维空间模型的自动生成算法，利用碱基对和碱基链对其进行相应的模型表示。

The amplified product with 238 bp was purified and then directly sequenced by dideoxy nucleotide chain termination method .

PCR产物纯化后直接经双脱氧链末端终止法测定核苷酸序列。