Which one of the following does not follow the central dogma of molecular biology?

Analyze the following experimental steps performed by Frederick Griffith:
$I - R$ strain $\rightarrow$ injected into mice
$II - S$ strain $\rightarrow$ injected into mice
$III - S$ strain (heat-killed) $\rightarrow$ injected into mice
$IV - S$ strain (heat-killed) $+ R$ strain (live) $\rightarrow$ injected into mice
In which of the above stages will the mice remain alive?

The transformation experiments on Pneumococcus showed that:

The Hershey and Chase experiment is given below. What are the processes $P, Q,$ and $R$?
$\quad\quad \quad P \quad\quad\quad Q \quad \quad\quad R$

What is genetic material?

Give scientific reasons: $DNA$ and not $RNA$ is the genetic material in the majority of organisms.