In which form of $RNA$ most nucleotides are in modified form
$mRNA$
$rRNA$
$tRNA$
$hnRNA$
Human diploid cell contains ............ bp.
In eukaryotes, the $RNA$ polymerase that synthesises $tRNA$ is $RNA$ polymerase ______ and is also responsible for formation of ______ $rRNA$.
A normal metaphase chromosome with a midial centromere is
The genes, which are confined to differential region of $Y$ chromosome only, are called