Correct Answer: B

Rationale: The correct answer is B: 'Genes play a role in most mental disorders.' This statement is true as genes do play a significant role in the development of various mental disorders. Choice A is incorrect because most behavioral disorders are influenced by a combination of genetic, environmental, and other factors, not exclusively genes. Choice C is incorrect as genes do affect biochemical processes. Choice D is incorrect because the expression of genes in an individual can be influenced by experiences and environmental factors, a concept known as gene-environment interaction.

Correct Answer: C

Rationale: The correct answer is C, Projection. Projection is the defense mechanism where one attributes their own unacceptable feelings to others. In this scenario, Julia is projecting her feelings of guilt and shame onto her husband by accusing him of cheating. Sublimation (choice A) involves channeling unacceptable impulses into socially acceptable activities. Displacement (choice B) is redirecting emotions from the original source to a substitute target. Rationalization (choice D) is providing logical explanations to justify unacceptable behavior, which is not applicable in this context.

Correct Answer: B

Rationale: The correct answer is B: necessary cause. A necessary cause is an essential factor for the disorder to occur. In this scenario, if having a gene for Parkinson's disease guarantees the development of the disease, then the gene is a necessary cause. Choice A, 'risk factor,' implies an increased likelihood of developing the disease but does not indicate certainty. Choice C, 'sufficient cause,' indicates that the gene alone can bring about the disease, which is not necessarily true in this context. Choice D, 'contributory cause,' suggests that the gene plays a part in causing the disease but is not essential for its development.

Correct Answer: B

Rationale: Genetic predispositions are indeed a factor in the development of mental disorders, but they are not the sole determining factor. While genetics can predispose individuals to certain conditions, environmental factors, lifestyle choices, and life experiences also play a significant role. Choice A is incorrect because mental disorders are influenced by a combination of genetic and environmental factors. Choice C is incorrect as genetic predispositions do have an impact on mental health. Choice D is incorrect as genetic predispositions do not guarantee the development of mental disorders, as other factors also contribute to their onset.

Correct Answer: B

Rationale: The correct answer is B. Defense mechanisms contribute to psychopathology by allowing individuals to avoid confronting painful realities. This avoidance can prevent individuals from dealing with underlying issues, leading to the development or exacerbation of psychopathological conditions. Choice A is incorrect because while defense mechanisms may serve as coping mechanisms, they can also contribute to psychopathology when used excessively or inappropriately. Choice C is incorrect as defense mechanisms are indeed connected to psychopathology. Choice D is incorrect because defense mechanisms, when maladaptive, can contribute to psychopathology rather than being considered healthy coping strategies.