Why does the ancestry/trait result differ from what is expected?

Genetic variations linked to ancestry and traits occur throughout the genome. They are responsible for the natural genetic diversity among people. These genetic variants estimate the most likely ancestry or traits that a person will have. They are not definitive and do not guarantee the occurrence of specific ancestry or traits. Sometimes, the ancestry and traits we express do not match what is expected based on DNA testing. There are a few reasons for this. First, Helix testing may not include all of the genetic variants linked to a specific trait or ancestry. Also, there may be interactions between genes that are not yet fully understood. Genetic traits are often influenced by multiple genes making it difficult to predict precise outcomes. Finally, genetic traits can be influenced by the environment or other factors. These factors can interact with our genetic makeup and contribute to differences between the traits that are expressed and the traits expected based on DNA testing.