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A1.2 HL Hershey and Chase (1952)
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Total cards: 7•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (7)
#1
Front (Question)
What question did Hershey and Chase test?
Back (Answer)
Is genetic material DNA or protein?
#2
Front (Question)
What organism did they use?
Back (Answer)
T2 bacteriophage (virus infecting E. coli).
#3
Front (Question)
How did they label DNA?
Back (Answer)
Radioactive ³²P (DNA contains phosphorus).
#4
Front (Question)
How did they label protein?
Back (Answer)
Radioactive ³⁵S (proteins contain sulfur in amino acids).
#5
Front (Question)
What was the experiment procedure?
Back (Answer)
• Phages infect bacteria. • Blender shakes off viral coats. • Centrifuge separates bacteria (pellet) from viral coats (supernatant).
#6
Front (Question)
What were the results?
Back (Answer)
³²P (DNA) found in bacteria. ³⁵S (protein) remained outside.
#7
Front (Question)
What did they conclude?
Back (Answer)
DNA is the genetic material, not protein.