text: This ion is bonded to mevalonate in a late step of the mevalonate pathway, after which that molecule is converted into one consisting of this ion bonded to an isopentenyl group.
full_question: This ion is bonded to mevalonate in a late step of the mevalonate pathway, after which that molecule is converted into one consisting of this ion bonded to an isopentenyl group. This ion is covalently bonded to a thiazole, which is bonded to a pyrimidine, in a molecule required as a cofactor for 2-hydroxyphytanoyl-CoA lyase, pyruvate dehydrogenase, and transketolase. This ion is released when DNA polymerase adds a nucleotide to a growing chain. This ion is bonded to thiamine in the most common derivative of vitamin B1. This ion with a 4-minus charge is produced when ATP is hydrolyzed to AMP. For 10 points, name this anion formed from the condensation of two phosphates.
first_sentence: This ion is bonded to mevalonate in a late step of the mevalonate pathway, after which that molecule is converted into one consisting of this ion bonded to an isopentenyl group.
raw_answer: pyrophosphate [or P2O74-; or HP2O73-; or PPi; or diphosphate; or dipolyphosphate; or pyrophosphoric acid; or diphosphoric acid; or dipolyphosphoric acid; accept phosphate before "isopentenyl" is read]