Use the passage to answer the question

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

Answer 1

presence of metabolic pathways