$DNA$ polymerases catalyse polymerisation of / in
Ribonucleotides
$5^{\prime} \rightarrow 3^{\prime}$ direction
$3^{\prime} \rightarrow 5^{\prime}$ direction
Deoxyribonucleosides
The polytene chromosomes were discovered for the first time in
During transcription, if the nucleotide sequence of the $DNA$ strand that is being coded is $ATACG$; then the nucleotide sequence in the $mRNA$ would be
The mean diameter of $DNA$ double helix is
Histones are rich in