conclusion:this new method of dna sequence deletion mutation is simple and accurate. it could avoid new mutation in pcr process of traditional dna manipulation method.
结论:该方法操作简单、精确,能够避免引入新突变,为dna序列的缺失突变提供了一种新方法。
they examined the genes of the cancer cells in the infant and found a deletion mutation – some dna missing in the region that controls expression of the major histocompatibility locus (hla).