2.2) Draw a simple structure to illustrate a nucleotide and clearly indicate the 3´, 5´ ends on the sugar where the phosphodiester linkage would form.
DNA is a double helix structure in which two strands are linked together by hydrogen bonds between complementary bases. The two strands run in opposite direction. The two nucleotide are linked through 3'_5' phosphodiester linkage to from dinucleotide. In this the phosphodiester bond is present between the 3' carbon atom of one sugar molecule and the 5'. Carbon atom of another atom of the sugar molecule.