In the Hershey and Chase experiment,proteins and $DNA$ can be labeled with which of the following respectively?

$A$ series of experiments were conducted by Frederick Griffith in $1928$,on the transforming principle with:

If the transforming principle is transferred to the $R$-strain,what characteristics will the $R$-strain acquire?
$(i)$ Formation of a smooth polysaccharide coat
$(ii)$ Becomes non-virulent
$(iii)$ Becomes virulent
$(iv)$ Does not form a smooth polysaccharide coat

Explain the biochemical characterization of the transforming principle.

Which of the following viruses contains $RNA$ as its genetic material?

The $RNA$ can be removed by treatment with ................... whereas proteins can be removed by treatment with ................ in isolation of $DNA$ from cell.