The induction of mutator gene umuC by DNA-damaging agents is detected by measuring intracellular beta-galactosidase levels.
2.
:: I am still a bit confused on the paragraph I quoted but I can understand the mutator gene example now after reading that article.
3.
:As regards to the inducing mutation example, have a look at genetic hitchhiking, I believe it explains a mechanism by which a mutator gene could selfishly propagate itself.
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