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.

Frederick Griffith - Discovered the phenomenon of transformation

Linus Pauling - Isolated DNA for the first time

Francis Crick - Proposed one gene-one polypeptide hypothesis

George Beadle - Proposed the concept of inborn errors

${}^{32}P$

${}^{35}P$

${}^{35}S$

${}^{23}P$

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

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

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

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

Radioactive sulfur (35S) was found inside the bacterial cells, while radioactive phosphorus (32P) remained outside.

Both radioactive phosphorus (32P) and sulfur (35S) were found inside the bacterial cells.

Neither radioactive phosphorus (32P) nor sulfur (35S) were found inside the bacterial cells.

Radioactive phosphorus (32P) was found inside the bacterial cells, while radioactive sulfur (35S) remained outside.

DNA

RNA

Protein

Lipids

E. Coli

Tetracoccus

Diplococcus

Penicillin

RNase

Protease

DNase

Lipase

Bacterial DNA

Protein Capsid of Phage

Cytoplasm of bacteria

Phage DNA

Live non-virulent bacteria did not cause disease in mice.

Heat-killed virulent bacteria did not cause disease in mice.

Live virulent bacteria caused disease in mice.

Heat-killed virulent bacteria, when mixed with live non-virulent bacteria, caused the latter to become virulent.

32P for protein and 35S for DNA

35S for both DNA and protein

32P for DNA and 35S for protein

32P for both DNA and protein