Think about the events related in "a cub pilot" and the excerpt from barrio boy. given these events, which action would the authors of the two memoirs most likely praise?

a person works through her doubts to achieve a worthwhile goal.

b. person turns away from friends facing trouble.

c. person becomes a stern and unforgiving teacher.

d. person stands up against an injustice.

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