Splicing is necessary for preparing a mature transcript and its movement to cytoplasm. It requires
Which site of a $t-RNA$ molecule hydrogen bonds to a $m-RNA$ molecule
Pribnow box is a consensus of $. .. . ...$ bases, forming a binding site for $E.$ coli $RNA$ polymerase at promotor
Ribosomal $RNA$ is actively synthesized in
Satellite $DNA$ is useful tool for......