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What causes bottom end engine knock?

What causes bottom end engine knock? It is caused by wear or damage. When a vehicle’s connecting rods inside the bearings have excessive clearance, movement is affected. When the piston changes direction, metal hits metal and […]

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What is a promoter for biology?

What is a promoter for biology? A promoter, as related to genomics, is a region of DNA upstream of a gene where relevant proteins (such as RNA polymerase and transcription factors) bind to initiate transcription of […]

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