Which statements about RNA synthesis are TRUE? Select all that apply. Question 8Answer The energy to power RNA synthesis comes from hydrolysis of two phosphoanhydride bonds in the precursors. RNA polymerase adds nucleotides to the 5' end of the new RNA strand. To start RNA synthesis, RNA polymerase must bind to a primer. The precursors of RNA synthesis are nucleoside triphosphates. RNA polymerase forms phosphoanhydride bonds. RNA polymerase selects the nucleotides to add to the new RNA strand based on correct base pairing with the template.