The human chromosomes are divided into $7$ groups, $B$-chromosomes are
$6-12$
$1-3$
$13-15$
$4-5$
Lampbrush chromosomes are visible
$RNA$ is a genetic material in
In-vitro template independent $RNA$ synthesis is a feature of
Length of $DNA$ in $E$. coli is
Which of the following is the simplest amino acid