This most definetly false. Science thrives on evidence, and anything science based needs to proven through scientific means. And theories are constantly given evidence for or against.
In essence the key to science is to always keep and open mind. Any scientist who thinks differently is not a scientist.
The side groups are what make each amino acid different from the others. Of the 20 side groups used to make proteins, there are two main groups: polar and non-polar. These names refer to the way the side groups, sometimes called "R" groups, interact with the environment.
