Question
Why did Hershey and Chase work with bacteriophages in their experiments to prove that DNA is the genetic material? Explain.
✓
Answer
Hershey and Chase selected bacteriophage for their work because of the following reasons:
- A bacteriophage has only two components-protein and DNA.
- They worked to find whether it was protein or DNA from the virus that entered the bacteria.
- The bacteriophage attaches to the bacteria.
- Its genetic material enters the bacterial cell.
- The bacterial cell treats the viral genetic material as if it was its own and subsequently manufactures more virus particles. vi. Proving DNA to be the genetic material/by tracing the radioactivity on DNA.
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