Answer: There are four different types of monomers in DNA: adenine (A), cytosine (C), guanine (G), and thymine (T). These four nitrogenous bases form the building blocks of DNA and are linked by phosphodiester bonds to form a long polymer chain, called a polynucleotide. The specific sequence of these monomers, or nucleotides, determines the genetic information stored in DNA.
Step-by-step explanation: