In eukaryotes, the $RNA$ polymerase that synthesises $tRNA$ is $RNA$ polymerase ______ and is also responsible for formation of ______ $rRNA$.

Heterogenous nuclear $RNA$

$TATA$ box of eukaryotic promotor lies

Which type of $RNA$ is most abundant in cell

Genes which confer antibiotic resistance on bacteria are located on

When the genomes of two people are cut using the same restriction enzyme, the length and number of fragments obtained are different, this is called