Which study focuses on the interaction between environment and genetics?

The study that focuses on the interaction between environment and genetics is known as epigenetics. This field investigates how environmental factors, such as diet, stress, and toxins, can influence gene expression without altering the underlying DNA sequence. Epigenetic modifications can affect how genes are turned on or off, potentially impacting an individual's traits and health. This interplay highlights the complexity of biological development and the role of both inherited and environmental influences.