Length of $DNA$ in $E$. coli is
$2.2\; m$
$1.36\; mm$
$1.36\; m$
$3.4\; m$
Plasmids are composed of
Two sister chromatids are attatched with
Majority of unusual bases are found in $tRNA, T \Psi C$ loop is
In a hair pin model of $RNA$ which nitrogen base is present at the short end