Question

Hershey and Chase set out to determine what molecule served as the unit of inheritance. They completed a series of transduction experiments in which E. coli was infected by a T2 virus. Which radiolabeled element was found in the cell and what was the molecule it was found in:

A) protein
B) RNA
C) ribosome
D) DNA

Answer 1

Answer:

D) DNA

Explanation:

The Hershe-Chase experiments were a series of expremients conducted in 1952 by Alfred Hershey and Martha Chase that helped to confirm that DNA is the genetic material (Unit of inheritance).

In their experiments, Hershey and Chase showed that when bacteriophages which were composed of DNA and Protien, infect bacteria, their DNA enters the host bacterial cell, but most of their protien does not. Although the results were not conclusive, and Hershey and Chase were cautious in their interpretation, previous, contemporanous, and subsequent discoveries all served to prove that DNA IS THE HEREDITARY MATERIAL.