That's a great start! You're right, the DNA sequences within an organism's genetic code hold the blueprint for its traits. However, it's a bit more nuanced than simply saying they *determine* the traits. Here's a more accurate explanation:

DNA sequences provide the instructions for building and maintaining an organism.

* Genes: Specific segments of DNA called genes contain the instructions for creating proteins. Proteins are the workhorses of the cell, carrying out a vast array of functions.

* Proteins and Traits: The specific proteins produced by genes influence an organism's traits (like eye color, height, or disease susceptibility).

* Environment: It's important to remember that traits are not solely determined by genes. The environment also plays a significant role. For example, nutrition can influence height, and exposure to sunlight can influence skin color.

So, while DNA sequences are the fundamental blueprint, they interact with the environment to shape the traits an organism exhibits.