Molecule not found in DNA is an amino acid.
Explanation:
DNA is a nucleic acid responsible for containing the genetic information of living beings. The basic structure of DNA consists of:
A sugar, deoxyribose.
Nucleotides, including adenine, guanine, cytosine and thymine.
Phosphate groups.
The information contained in DNA allows the synthesis of proteins necessary for the structure and function of living beings. Amino acids are part of proteins, but it is a molecule that is not found in DNA.