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In the Hershey and Chase experiment, radioactive phosphorus was used to label the:

ADNA strand
BProtein coat
CSugar chain
DLipid layer
Answer & Solution
Correct answer: A. DNA strand
1. Sulphur labels protein, phosphorus labels the other molecule. 2. Only one of the two contains phosphorus. 3. So phosphorus labelled the DNA strand. _Source: OpenStax Biology 2e, Chapter 14, DNA Structure and Function._
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