Some insecticides, such as chlorpyrifos, work by inhibiting the enzyme acetylcholinesterase (AChE), which normally breaks down the neurotransmitter acetylcholine. Where does this insecticide most likely bind to inhibit the enzyme's activity?
A. The part of an enzyme that combines with acetlycholine
B. It does not need to bind with the enzyme directly
C. A sequence of DNA nucleotides that encodes the AChE enzyme protein molecule
D. Any location on the amino acid chain that forms the AChE enyzme
Answer: A
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