Definition of Gene Expression. A gene is a small piece of genetic material written in a code and called DNA. Each gene has within it a set of instructions for making molecules that organisms need to survive. Genes themselves cannot be used by an organism.Instead they must be turned into a gene product. gene is a small piece of genetic material written in a code and called DNA. Each gene has within it a set of instructions for making molecules that organisms need to survive.
People with antisocial personality who seek help (or are referred) can be offered evaluation and treatment as outpatients. Patients can be offered an array of services, including neuropsychological assessment, individual psychotherapy, medication management, and family or marital counseling.
Types of personality disorders. 1  Antisocial personality disorder is a chronic mental illness in which someoneâs way of thinking and perceiving reality is abnormal and destructive. 2  Borderline personality disorder is a mental disorder that causes emotional instability that can damage one's relationships.