$A$ set of genes or $cDNA$ is immobilized on a glass slide and used in transcriptome studies is called

Khorana got the Nobel Prize on

Now a days which of the following are known as "magic circles"

Which one of the following peak absorption of ultraviolet light by heterocyclic bases $(Nitrogen bases)$

$A$ : Teminism is unidirectional flow of information.
$R$ : It requires $DNA$ dependent $RNA$ polymerase enzyme

The total number of nitrogenous bases in human genome is estimated to be about