The Hershey & Chase Blendor Experiment (Part 2)

    During the process of infection of bacteria by phage, a quick spin in a Waring blendor shears phage away from the outside of the bacteria. Analysis of the bacterial pellet and supernatant fractions demonstrates that ³²P phosphorus-labelled DNA inside the phage shows up inside bacteria (left), whereas the ³⁵S sulfur-labelled protein in the external coat remains in the supernatant (right). Further, phage labelled with ³²P go on to produce progeny phage that are also labelled. This biological experiment confirms Avery's conclusion that DNA is the transforming substance, and shows that transformation is inherited.

HOMEWORK: The Hershey & Chase blendor experiment is often described as "quick & dirty": Why? Explain, in terms of  the key figure in Hershey & Chase (1952) (below).