Able to replicate accurately

Chemically and structurally stable

Must be easily degradable

Scope for slow changes (mutations)

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

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

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

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

A type of bacteria

A bacterial enzyme

A virus that infects bacteria

A component of bacterial DNA

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

Polysaccharide Capsule

RNA

None

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

Sulfur is a component of both DNA and protein

Sulfur is a component of proteins but not DNA

Sulfur is easily detectable in bacterial cells

Sulfur is a common component of bacterial cell walls

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

RNase

Protease

DNase

Lipase

DNA is the genetic material

Protein is the genetic material

Both DNA and protein are the genetic material

The experiment would be inconclusive regarding which molecule is the genetic material

James Watson and Francis Crick

Frederick Griffith

Oswald Avery, Colin MacLeod, and Maclyn McCarty

Alfred Hershey and Martha Chase