Akira was born with genes that enabled muscle coordination, but his environmental experiences never supported the development of his potential athletic ability, so he never became a professional athlete. this example illustrates the concept of a trait being '

Multi - factorials traits

Explanation:

In medicine, there are mention multi factors in heredity and disease. We can say that traits and conditions that are caused by more than one gene can occur multi-factorial and the disease that is caused by more than one factor, for example, heredity and diet results in diabetes. It is called a heredity factor that is seen when there is more than one genetic factor involved and even sometimes there is found environmental interaction in it. Many common traits are multi factorials such as skin color, height, intelligence is a multi-factorial determined. The most common disease found among multi factorials is type 2 diabetes, obesity. It is also called polygenic or complex inheritance.  

The disease includes are: