Cytidine is a
Nucleoside
Nitrogen base
Nucleotide
Common dinucleotide in $DNA$ and $RNA$
In the $340 A^o$ long $DNA$ strand
Given below are two statements:
Statement $I$: In prokaryotes, the positively charged DNA is held with some negatively charged proteins in a region called nucleoid.
Statement $II$: In eukaryotes, the negatively charged DNA is wrapped around the positively charged histone octamer to form nucleosome.
In the light of the above statements, choose the correct answer from the options given below:
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.
Which one of the following is not applicableto $RNA$ ?
$DNA$ polymerase links nucleotide by forming which type of bond: