摘要
突变是指遗传基因的永久性可遗传改变。通过突变技术可以有目的地取代、插入或删除已知DNA序列中的特定核苷酸。人们逐渐对突变技术有了一定的了解,已越来越多将该技术应用在医药、农业、酶工业等领域中,来人为地改变某些不理想的基因。
Mutation is a permanent heritable change refers to the genetic. It＇s possible to replace, in- sert or delete a specific nucleotide in the known DNA sequence through mutation techniques. Gradual- ly people have an good understanding of mutation technique that has been more and more applicated in the field of medicine, agriculture, the enzyme industry, to artificially change some undesirable gene.
关键词
突变技术
定点突变
非定点突变
Mutation technique
site-- directed mutagenesis
non-- site-- directed mutagenesis
