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The AraC Regulator Both Activates and Represses Transcription of the Genes

question 56

Essay

The AraC regulator both activates and represses transcription of the genes involved in arabinose catabolism. How is this system more advantageous to a cell than a simpler repressor system like that used on the lac operon?


Definitions:

Total Parenteral Nutrition

A method of feeding that bypasses the gastrointestinal tract, delivering nutrients directly into the bloodstream.

Botulism

A rare but serious illness caused by botulinum toxin, which can lead to paralysis and is often foodborne.

Myelomeningocele

A birth defect where the backbone and spinal canal do not close before birth, a form of spina bifida.

Neurogenic Bladder

A bladder dysfunction caused by neurological damage, leading to problems with storage or voiding of urine.

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