In a nucleus, the number of ribonucleoside triphosphates is $10$ times the number of deoxy $x10$ ribonucleoside triphosphates, but only deoxy\ ribonucleotides are added during the $DNA$ replication. Suggest a mechanism.
$DNA$ polymerase is highly specific to recognise only deoxy ribonucleoside triphosphates. Therefore it cannot hold $RNA$ nucleotides,
A given double stranded $DNA$ molecule is $1,00,000$ base pairs long. The length of this $DNA$ molecule will be
Thirty percent of the bases in a sample of $DNA$ extracted from eukaryotic cells is adenine. What percentage of cytosine is present in this $DNA$ ?
Cytidine is a
One turn of the helix in a Bform $DNA$ is approximately
The bacterial genome contains