The sections of our DNA that control what traits we have are called genes. Genes are specific sequences of DNA that provide instructions for making proteins, which are the building blocks of our body and play a crucial role in determining our traits and characteristics.
To answer your question, you can think of genes as the "blueprints" of our bodies. They contain the information necessary to produce specific proteins, which ultimately determine our physical traits, such as hair color, eye color, height, and so on.
If you want to learn more about the specific genes and traits, you can study genetics and molecular biology. These fields of science focus on understanding how our DNA works, how genes are inherited, and how they contribute to our traits and variations.