Definition of "overexpression" []

• The artificial expression of a gene in increased quantity (noun)

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• "The challenge was to measure the quantity of overexpression, that is, how much excess protein was being produced by each of the three variants."
• "So called 'overexpression' can occur when spliced genes that synthesize such chemicals become hyperactive inside the plant and result in potentially toxic plant tissues, lethal not just to meal worms and other crop pests, but to cats, dogs, birds, butterflies and other wildlife; and to their creators."
• "Various news outlets are reporting that researchers from the UK and Israel claim that even a quick bout of light in the middle of the night can trigger an 'overexpression' of brain cells linked to cancer."