lac operon


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lac operon

[′lak ′äp·ə‚rän]
(genetics)
Three adjacent linked genes which code for the enzymes that act sequentially in lactose utilization in many bacteria.
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As one held a vicelike grip on my arm and talked about Elan's latest collection for the entire hour missed, it made me think longingly of hearing about Lac Operon receptors in the stuffy lecture room instead.
His description of control mechanisms in the lac operon shows the complexity of that system, but one might wonder why he did not instead describe replication and its control mechanisms, which are just as complex and would have tied in better with the rest of the chapter.