A)
In 1952, Alfred Hershey and Martha Chase conducted an experiment about bacteriophage reproduction. They inserted a phosphorous isotope (^ 10 P) into the bacteriophages DNA, and a sulfur isotope (^ 35 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 blender to separate the cells from the extracellular matter They measured the percentage of isotopes that remained in the extracellular matter. The results are in the graph below
100-
90-
80-
TO-
60
30-
40
30-
20-
10-
0
12
extracellular S
Use the passage to answer the question
Which statement about bacteriophage reproduction is supported by the results of this study?
(1 point)
The sulfur isotopes entered the bacteria because they were attached to the bacteriophages genetic material
The phosphorous isotopes entered the bacteria because they were attached to the bacteriophages genetic material
extracellular P
867
running time in blender (min)
The sulfur isotopes remained outside of the bacteria because they were attached in the bacteriophages genetic material
The phosphorous isotopes remained outside of the bacteria because they were attached to the bacteriophages genetic material
percent of total isotope