The bacterium used in Griffith's experiment was

Who performed the famous "Replica Plating Experiment"?

$A$ molecule that acts as genetic material must fulfill the following criteria,$EXCEPT$:

Following representations $P$,$Q$ and $R$ denote few steps of the Griffith Experiment. Identify the correct one$(s)$:
$P. R$ strain $\rightarrow$ Inject into mice $\rightarrow$ Mice die
$Q. S$ strain (Heat killed) $\rightarrow$ Inject into mice $\rightarrow$ Mice die
$R. R$ strain $\rightarrow$ Inject into mice $\rightarrow$ Mice live

When did Frederick Griffith conduct a series of experiments using bacteria?

In chromosomes,the material controlling heredity is