Composed of three subunits: a 5-carbon sugar, a phosphate group that is joined to one end of the sugar molecule, and one of several different nitrogenous bases of which there are four types they are biochemical building blocks FTP name this class of chemicals, which include guanine  and cytosine, from which nucleic acids are formed.
Composed of three subunits: a 5-carbon sugar, a phosphate group that is joined to one end of the sugar molecule, and one of several different nitrogenous bases of which there are four types they are biochemical building blocks FTP name this class of chemicals, which include guanine  and cytosine, from which nucleic acids are formed.
Composed of three subunits: a 5-carbon sugar, a phosphate group that is joined to one end of the sugar molecule, and one of several different nitrogenous bases of which there are four types they are biochemical building blocks FTP name this class of chemicals, which include guanine  and cytosine, from which nucleic acids are formed.
{nucleotides}