Gene Identification by Shotgun Antisense
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Shotgun antisense is a technique to make a random set of mutant cells or organisms in such a way that one can select an interesting mutant and then sequence part of the mutated gene within a day. In addition to the fantastic rapidity with which one can identify the mutated gene, there are more advantages of this technique over other mutagenesis techniques: (1) one can identify genes that when completely repressed are lethal; (2) one can select which sets of genes will be mutated; and (3) genes that are expressed from multiple copies can be repressed and thus identified.
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