Normally, the gene makes a protein you need for brain development.
This led to the idea that one gene can make several proteins.
Your genes and environment may make you more likely to get allergies.
The data showed that genes made a person likely to develop schizophrenia under environmental pressures.
The genes of the immune system make proteins, but they are too large to be given off as odors.
But because each variant gene makes only a small contribution, it has been hard to identify them.
While the genes makes many paths possible, the brain is constructed from activity.
There are many ways that genes might make a person susceptible to alcoholism.
Why did genes choose to gang up and make large bodies for themselves to live in?
I would not even say that genes make you more predisposed to being a criminal either.