Who among the following was awarded the Nobel Prize for the development of the $PCR$ technique?

Agarose,extracted from seaweeds,is used in:

In the naming of restriction enzymes, the first letter is derived from $...A...$ name, the next two letters from the $...B...$, and the fourth letter from $...C...$ of $...D...$ where the enzymes are extracted.
$A$ to $D$ in the statement can be:

In case of $BamHI$,$H$ represents

The source of $Taq$ polymerase used in $PCR$ is a

What is the function of $rop$ in a cloning vector?