BIOD_152_Final_Exa m Correct Answer

Replication of DNA begins at a single origin of replication and then proceeds the entire length of the strand, in one direction (T/F) False What enzyme is responsible for relieving the stress associated with the twisting and untwisting of a DNA strand during replication. Topoisomerase As a replicated DNA strand elongates, what enzyme is responsible for adding nucleotides? DNA polymerase The energy required to add a nucleotide to a growing chain is supplied by an exergonic reaction involving the hydrolysis of the nucleotide's pyrophosphate tail (T/F) True During elongation, in which direction are new nucleotides being added to the leading strand? 5' —> 3' The leading strand requires ____ # of RNA primers, and the lagging strand requires ____ # of RNA primers. One; more than one