Which is true about the pacing in this excerpt?
the short, choppy sentences slow the pace and provide
background information
the short choppy sentences quicken the pace and
create a sense of urgency
the long, detailed sentences slow the pace and provide
background information
the long, detailed sentences quicken the pace and
create a sense of urgency

In a series of experiments, hershey and chase radioactively labeled dna and protein in viruses and then used labeled viruses to infect bacteria. hershey and chase's experiments definitively showed that a. dna and not protein is the genetic material. b. dna and protein work together as a cell's genetic material. c. protein and not dna is the genetic material. d. neither dna nor protein act as a cell's genetic material