Which of the following is responsible for hereditary characters?

. . . . . . nucleotide is not present in $RNA$.

In a nucleoside,a base is attached at the $1^{\prime}$ position of the sugar moiety. $A$ nucleotide is formed by linking a phosphoric acid unit to the sugar unit of a nucleoside. At which position of the sugar unit is the phosphoric acid linked in a nucleoside to give a nucleotide?

If one strand of $DNA$ has the sequence $ATGCTTGA$,what would be the sequence of its complementary strand?

Which of the following is not present in a nucleotide?

The nucleic acid base having two possible binding sites is