Bacterial artificial chromosome (BAC) is a kind of vector system used to construct large fragment insert libraries of genome DNA in human, animals and plants.
细菌人工染色体(BAC)是一种承载dna大片段的克隆载体系统，用于人、动物和植物基因组文库构建。
2
With availability of a fragment of target DNA sequence, flanking unknown DNA sequence was obtained rapidly by successive chromosome walk using Il-PCR method.
运用该技术进行染色体连续步移，快速扩增DNA侧翼未知序列。
3
The main aberrant type was chromosome type acentric fragment.