前噬菌体
前噬菌体-
前噬菌体导致宿主细胞基因型改变。
The presence of prophage DNA constitutes a genetic alteration to the host cell .
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总之，为了筛选具有高特异性和亲和性的肽，应该根据靶器官和筛选部位的不同，在筛选前确定合适的噬菌体在体内的循环时间。
In conclusion , the circulation time of phage in vivo should be experimentally determined beforehand according to the targeted organs and the specific location of target peptides in order to panning a peptide with high specificity and affinity to that target .