Dna

T2 phage

After centrlfugatlon, 35S Is recovered In the fluid containing the virus coats.

il Infect E. coli grown In T medium containing 35S.

^ST..and separate protein from cells

Protein E coli

After centrlfugatlon, 35S Is recovered In the fluid containing the virus coats.

T2 phage

No radioactivity is detected in progeny phages.

Infect E. coli grown in medium containing 32P.

Phage reproduction

No radioactivity is detected in progeny phages.

┬┐xperiment2 r

Protein E. coli

Infect E. coli grown in medium containing 32P.

^ 32P is taken up in phage DNA, which contains P but not S.

3| Shear off protein 1 coats in blender.

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