Nursing Elites

1. Down syndrome is caused by ________

• A. a chemical imbalance.
• B. a gene on the X chromosome.
• C. possessing an extra X chromosome.
• D. possessing an extra chromosome in chromosome 21.

Correct answer: D

Rationale: Down syndrome is caused by possessing an extra chromosome in chromosome 21, not a chemical imbalance (choice A), a gene on the X chromosome (choice B), or possessing an extra X chromosome (choice C). The presence of an extra copy of chromosome 21, also known as trisomy 21, leads to the characteristic features and health problems associated with Down syndrome.

2. In order for one to have a recessive trait (e.g., having red hair), the person must receive?

• A. At least one copy of a recessive gene from a parent
• B. Two copies of a recessive gene, one from each parent
• C. At least one copy of a recessive gene and at least one copy of a dominant gene
• D. At least two copies of a recessive gene from one parent

Correct answer: B

Rationale: Recessive traits are expressed when an individual inherits two copies of the recessive gene, one from each parent. Therefore, the correct answer is B. Choice A is incorrect as one copy of a recessive gene is not sufficient to display a recessive trait. Choice C is incorrect because having at least one copy of a dominant gene is unrelated to expressing a recessive trait. Choice D is incorrect because two copies of a recessive gene must come from both parents, not just one.

3. Neural plasticity is ________.

• A. the process by which neurotransmitters are broken down in the brain.
• B. the flexibility of the brain—existing neural circuits can change or new ones can be made.
• C. strong evidence of brain damage, leading to the development of a mental disorder.
• D. the best indicator of temperament and its effect on the personality development of a child.

Correct answer: B

Rationale: Neural plasticity refers to the brain's flexibility to change existing neural circuits or create new ones. Choice A is incorrect as it describes neurotransmitter breakdown, not neural plasticity. Choice C is incorrect because neural plasticity does not necessarily indicate brain damage leading to mental disorders. Choice D is incorrect because neural plasticity is not specifically related to temperament or personality development in children.

4. What is the biopsychosocial model?

• A. A model that integrates biological, psychological, and social factors in understanding mental disorders.
• B. A model that emphasizes the interaction between biological and psychological factors, excluding social influences.
• C. The biopsychosocial model emphasizes only psychological factors in mental disorders.
• D. The biopsychosocial model is a purely biological approach to mental health.

Correct answer: A

Rationale: The biopsychosocial model is a comprehensive approach that considers biological, psychological, and social factors in understanding mental disorders. Choice A is correct because it accurately describes how this model integrates these three factors. Choice B is incorrect as it excludes social influences from the model. Choice C is incorrect because it states that the model only emphasizes psychological factors, which is not true. Choice D is incorrect as it suggests that the model is purely biological, which is also inaccurate.

5. A psychologist who studied the relationship between sociocultural factors and mental disorders would be most likely to study ________.

• A. parenting style and self-schemas.
• B. poverty and racial discrimination.
• C. peer rejection and attributional style.
• D. assimilation and accommodation.

Correct answer: B

Rationale: A psychologist who studies the relationship between sociocultural factors and mental disorders would focus on factors like poverty and racial discrimination. These factors have a significant impact on mental health outcomes within different populations. Choices A, C, and D are less directly related to sociocultural factors like poverty and racial discrimination and their influence on mental disorders, making them incorrect.

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