(a) Draw the structure of a dinucleotide formed by joining the 3′-OH group of AMP to the 5′-phosphate in GMP. (b) Label the 5′ and 3′ ends. (c) Name the dinucleotide.
Analysis
Draw the structure of each nucleotide. In this case the sugar is ribose since the names of the mononucleotides do not contain the prefi x deoxy. Bond the 3′-OH group to the 5′-phosphate to form the phosphodiester bond. The name of the dinucleotide begins with the nucleotide that contains the free phosphate at the 5′ end.