Each disease has a biochemical basis.

This is true. Diseases are often caused by disruptions in normal biochemical processes within the body. For example, genetic mutations can lead to the production of abnormal proteins that can cause diseases such as cystic fibrosis or sickle cell anemia. Imbalances in hormones or neurotransmitters can also lead to diseases such as diabetes or depression. Understanding the biochemical basis of a disease is crucial for developing effective treatments and therapies.

True