A strain of bacteriophages was grown in BrdU. BrdU is a base analog, that when incorporated into DNA, causes the DNA to fluoresce yellow. Another culture of the bacteriophage strain was grown in media containing cysteine (an amino acid) linked to a red fluorescent molecule. Each strain of bacteriophage was allowed to infect unlabeled cells. Follow the patterns of fluorescence through infection. How would this experiment help prove that DNA is the genetic material