The values of DNA-DNA homology between type strains of these species were less than 70%, which showed that strain SH2672 (representative strain of new group) represented a new rhizobial species.
DNA fingerprinting and other DNA analysis techniques have revolutionized criminal investigations by giving investigators powerful new tools in the attempt to trove guilt, not just establish innocence.
DNA 指纹和其他 DNA 分析技术已经给犯罪调查带来了革命性的变化，它给调查人员提供了强大的新工具来试图发现罪行，而不仅仅是确立清白。
3
Now a telomere is a highly repetitious and genetically meaningless sequence of DNA, what we were calling junk DNA.