Question: what are the subunits of nucleic acids quizlet?
Answer: Terms in this set (12) Composed of 3 smaller subunits: 5-C (pentose) sugar, a phosphate group attached to the sugar, and a nitrogenous base attached to the other end of the sugar. Contain a single ring of C and Nitrogen (cytosine & thymine). Contains two ring of C and Nitrogen (guanine & adenine).