Nobel prize winner E.W. Sutherland demonstrated
Mechanism of action of $cAMP$
$tRNA$
Operon model
$mRNA$
Repetitive sequences are stretches of $DNA$ with repeated bases many times in a genome, but
$(a)$ These sequences are of no transcriptional function
$(b)$ These are associated with euchromatin region
$(c)$ These helps to identify a person on the basis of its $DNA$ specificity
Majority of unusual bases are found in $tRNA, T \Psi C$ loop is
The human chromosomes are divided into $7$ groups, $B$-chromosomes are
Micrococcas nuclease enzyme
During $DNA$ replication, the strands separate by