Having blue eyes is neither a genetic dysfunction nor a chemical imbalance. That is a new one. Genetic dysfunctions and chemical imbalances are not generally passed down from generation to generation. Whoever told you they were has never heard of Charles Darwin and his Theory of Evolution.
Even though the behavior of a schizophrenic may be beyond the norm, it is possibly a genetic, chemical imbalance that may be modified by medication.
recessive traits
The term "genetic disease" refers to a disease that is inherited- or passed from one generation to the next.
genetic monotony is the result of asexual reproduction which generation after generation exactly identical progeny develops
Mendel
The chemical responsible for genetic information in a cell is DNA
DNA may be what you are referring to.
Each new generation inherits alleles from the previous generation.
I think I is genes though I am not sure. Hope this helped.
Genetic drift
Genetic factors are passed through DNA (or genes).
the P (parental) Generation