Ch 10 HW Due: 11: 55pm on Monday,
November 10, 2014
You will receive no credit for items you complete after the assignment is due.
Grading Policy DNA as Genetic Material:
The Hershey and Chase Experiment
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The Hershey and Chase experiments involved the preparation of two different types of radioactively labeled phage.
Which of the following best explains
why two preparations were required?
Recall the composition of T2 phages.
Each scientist had his own method for labeling phage,
so each conducted the same experiment using a different isotope.
The bacteriophage used in the experiments was a T2 phage.
Establishing the identity of the genetic material required observation of two phage generations.
It was necessary that each of the two phage components,
DNA and protein,
be identifiable upon recovery at the end of the experiment.…...