摘要：

The one-step gene disruption techniques described here are versatile in that a disruption can be made simply by the appropriate cloning experiment. The resultant chromosomal insertion is nonreverting and contains a genetically linked marker. Detailed knowledge of the restriction map of a fragment is not necessary. It is even possible to "probe" a fragment that is unmapped for genetic functions by constructing a series of insertions and testing each one for its phenotype.

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