- A nucleotide is a kind of basic unit of genetic information
- A nucleotide contains one nitrogenous base
- Therefore, a basic unit of genetic information can be found in the nitrogenous base

- A basic unit of genetic information can be found in the nitrogenous base
- Guanine is a kind of nitrogenous base in dna / rna
- Hence, a basic unit of genetic information can be found in guanine in dna

So, a basic unit of genetic information can be found in guanine in dna
Q: Which part of a DNA molecule represents encoded information?
Context:
- A nucleotide is a kind of basic unit of genetic information 
- Guanine is a kind of nitrogenous base in dna / rna 
- A nucleotide contains one nitrogenous base