Use the passage to answer the question
In 1952, Alfred Hershey and Martha Chase conducted an experiment about bacteriophage reproduction. They inserted a phosphorous isotope (P) into the bacteriophages DNA, and a sulfur isotope (^ ic s) into a protein in the bacteriophages capsids. Hershey and Chase then infected bacteria with the bacteriophages. After infection, they put the bacteria in a blerider to separate the cells from the extracelular maller. They measured the percentage of isotopes that remained in the extracellusar matter. The results are in the graph below.
100-
90-
80-
70-
60-
50-
40-
30-
20-
10-
0+
0
extracellular S
2
extracellular P
34
56
7
1 running time in blender (min)
Which characteristic is present in the bacteria but absent in the bacteriophages?
(1 point)
ability to evolve
Opresence of glycoproteins
ability to develop gene mutations
O presence of metabolic pathways
percent of total isotope
8