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Use "inactivation" in a sentence
"Because transpositions result in inactivation of neighbouring genes, McClintock used the term "controlling elements" to describe the mobile chromosome structures."
"Seeing that it’s involved in inactivation/metabolism of norepinephrine and dopamine (neurotransmitters), this may be similar in effect to reuptake inhibitors or catecholamine agonists ... you know, like amphetamines ...."
"However, even at the first five passages, the resulting cells showed variations in X chromosome inactivation, meaning some cells had inactivated one X chromosome and some had not."