Characteristics such as a widow's peak or attached earlobes are determined by the genetic code. which components of dna are referred to as the genetic code

The components of dna that are referred to as the genetic code and that are responsible for characteristic of a person such as a widow's peak are the nitrogenous bases. They include adenine (A), uracil (U), guanine (G), thymine (T), and cytosine (C).

What is the example? i’ll be happy to answer if you can tell me : )