Discovery of DNA's structure and function Knowledge-Based Practice

Questions

1. 1.

   In their 1952 blender experiment with T2 bacteriophages, Alfred Hershey and Martha Chase sought to identify whether DNA or protein serves as the genetic material. Which radioactive isotope was used to label DNA, and where was this isotope predominantly recovered after centrifugation?

   • A) $^{32}\text{P}$, predominantly detected in the bacterial pellet
   • B) $^{35}\text{S}$, predominantly detected in the bacterial pellet
   • C) $^{32}\text{P}$, predominantly detected in the liquid supernatant
   • D) $^{35}\text{S}$, predominantly detected in the liquid supernatant

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