Which among the following nitrogen bases of polynucleotides is $NOT$ derived from pyrimidine?

Which $C$ atom of ribose sugar (numbered from $1^{\prime}$ to $5^{\prime}$) bonds with the phosphate group to form $AMP$ (in $^{\prime}$)?

$DNA$ multiplication is called:

The total number of hydrogen bonds in a $DNA$ double helix strand,where one strand has the following sequence of bases,is $...........$
$5^{\prime}-G-G-C-A-A-A-T-C-G-G-C-T-A-3^{\prime}$

Which among the following is a double ring containing nitrogen base present in nucleic acids?

Given below are two statements:
Statement $I$: $A$ unit formed by the attachment of a base to $1'-$position of sugar is known as nucleoside.
Statement $II$: When nucleoside is linked to phosphorous acid at $5'-$position of sugar moiety,we get nucleotide.
In the light of the above statements,choose the correct answer from the options given below: