After allowing phages grown with bacteria in a medium that contained 32P and 35S, Hershey and Chase used a centrifuge to separate the phage ghosts from the infected cell. They then examined the infected cells and found that they contained _____, which demonstrated that _____ is the phage's genetic material.a. labeled DNA .... protein
b. labeled DNA ... labeled protein
c. labeled DNA ... DNA
d. labeled protein .... protein
e. labeled protein ... DNA