Which statement about the role of genes in abnormal behavior is FALSE?

A) Genes probably play no part in mental disorders.
B) The Human Genome Project, completed in 2000, helped identify the precise contribution of various genes to mental disorders.
C) Each human cell contains approximately 20,000 genes, some of which may contribute to mental disorders.
D) In most cases, several genes combine to help produce dysfunctional behavior.

Human Genome Project

An international scientific research project that successfully mapped and understood all the genes of human beings, known collectively as the genome.

Genes

Units of DNA that carry hereditary information and are responsible for the inheritance of specific traits or characteristics.

Abnormal Behavior

Actions or behaviors that deviate significantly from what is considered typical or expected within a society or cultural context.