The lac operon. In the absence of lactose, the repressor protein encoded by the I gene binds to the lac operator and prevents transcription. Binding of allolactose to the repressor causes it to leave the operator. This enables RNA polymerase to transcribe the three genes of the operon.n the absence of lactose, the repressor protein encoded by the I gene binds to the lac operator and prevents transcription. Binding of allolactose to the repressor causes it to leave the operator.
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The NCH Toolbar is a great way to stay up to date with the latest information from NCH Software. When a program is updated or a special offer is made, we'll let you know with the NCH Toolbar. It's also a great way to search the web. The toolbar installs into your web browser, and is compatible with Microsoft Internet E... Read more