Protein

RNA

DNA

Carbohydrates

Sulfur (35S)

Phosphorus (32P)

Nitrogen (15N)

Carbon (14C)

${{\rm{H}}^3}$

${{\rm{P}}^{32}}$

${{\rm{N}}^{15}}$

${{\rm{S}}^{35}}$

Griffith's experiment with Streptococcus pneumoniae

Avery, MacLeod, and McCarty's experiment with bacterial transformation

Hershey-Chase experiment using bacteriophages

Meselson-Stahl experiment demonstrating semi-conservative replication

Radioactive sulfur ($^{35}S$) was found inside the bacteria.

Radioactive phosphorus ($^{32}P$) remained outside the bacteria.

Both radioactive sulfur ($^{35}S$) and phosphorus ($^{32}P$) were found inside the bacteria.

Radioactive phosphorus ($^{32}P$) was found inside the bacteria.

DNA

RNA

Protein

Lipids

Protease

Ribonuclease

Deoxyribonuclease

Lipase

Radioactive sulfur ($^{35}$S) was found inside the bacterial cells.

Radioactive phosphorus ($^{32}$P) was found inside the bacterial cells.

Both radioactive sulfur and phosphorus were found inside the bacterial cells.

Neither radioactive sulfur nor phosphorus were found inside the bacterial cells.

${}^{32}P$

${}^{35}P$

${}^{35}S$

${}^{23}P$

E. Coli

Tetracoccus

Diplococcus

Penicillin

DNA

Polysaccharide Capsule

RNA

None