Plasmids are composed of
Folded $RNA$ molecules
Single stranded $DNA$
Circular double stranded $DNA$
None of the above
$TATA$ box of eukaryotic promotor lies
In eukaryotes, $RNA$ polymerase $III$ catalyses the synthesis of
Which of the following bond is not present in $DNA$?
If in a test tube, $mRNA$ of E. coli cells and $tRNAs$ from the body of rats are taken and sufficient number of amino acids are put, then the polypeptide synthesized will be of the nature of
Balbiani rings are present in