[dcnd9]

Abnormal tendencies are not necessarily "gene" sourced....alcoholism is a good example of this.

[Ichneumon]

Abnormal tendencies are not necessarily "gene" sourced....alcoholism is a good example of this.

Say what? If you're implying that there is no known genetic component of alcoholism, or that such a component has been ruled out, you're mistaken.

See for example:

Genomewide linkage study in the Irish affected sib pair study of alcohol dependence: evidence for a susceptibility region for symptoms of alcohol dependence on chromosome 4

The Role of GABRA2 in Risk for Conduct Disorder and Alcohol and Drug Dependence across Developmental Stages

New findings on the genetic influences on alcohol use and dependence

Confirmation of association of the GABRA2 gene with alcohol dependence by subtype-specific analysis

Endophenotypes successfully lead to gene identification: results from the collaborative study on the genetics of alcoholism

Association between alcoholism and gamma-amino butyric acid alpha2 receptor subtype in a Russian population

Diplotype Trend Regression Analysis of the ADH Gene Cluster and the ALDH2 Gene: Multiple Significant Associations with Alcohol Dependence

Influence of genetic variations of ethanol-metabolizing enzymes on phenotypes of alcohol-related disorders

Allelic variation at alcohol metabolism genes ( ADH1B, ADH1C, ALDH2) and alcohol dependence in an American Indian population