Thirty percent of the bases in a sample of $DNA$ extracted from eukaryotic cells is adenine. What percentage of cytosine is present in this $DNA$ ?
$10\%$
$20\%$
$30\%$
$40\%$
Nucleotides are linked by
$DNA$ strands are antiparallel because of the presence of
Assertion : In a $DNA$ molecule, $A-T$ rich parts melt before $G-C$ rich parts.
Reason : In between $A$ and $T$ there are three $H-$ bond, whereas in between $G$ and $C$ there are two $H-$ bonds.
Retroviruses do not follow central Dogma. Comment
Which one of the following is not applicableto $RNA$ ?