Question

art 1 - general science
which of these is part of the dna structure?
a lidocaine
b benzene
c guanine
d radon

Explanation:

DNA is composed of nucleotides. Each nucleotide has a nitrogen - containing base. The four nitrogenous bases in DNA are adenine, thymine, cytosine, and guanine. Lidocaine is a local anesthetic, benzene is an organic compound not part of DNA structure, and radon is a radioactive gas. So guanine is part of the DNA structure.

Answer:

C. guanine