What are informosomes?

$DNA$ generally acts as a template for the synthesis of:

Match the scientist of Column $I$ with their contributions in Column $II$.

Column $I$	Column $II$
$A$. Griffith	$i$. Lac operon
$B$. Jacob and Monod	$ii$. $DNA$ is the genetic material
$C$. Meselson and Stahl	$iii$. Transforming principle
$D$. Hershey and Chase	$iv$. $DNA$ replicates semiconservatively

Which of the following is an incorrect combination?

Assertion $(A):$ The split gene arrangement represents probably an ancient feature of the genome.
Reason $(R):$ $\text{hnRNA}$ undergoes additional processing called as capping and tailing.
Choose the correct option.

For protein synthesis,$P$ can directly code,while each nucleotide of $Q$ has a $2'-OH$ group in its sugar. Identify $P$ and $Q$.
$\quad\quad P\quad Q$