Nursing Elites

1. What does the genetic study of identical twins reared apart help to clarify?

• A. Differences in brain function
• B. Genetic influence on behavior
• C. Interaction between genetics and environment
• D. The role of environmental factors alone

Correct answer: C

Rationale: The correct answer is C: 'Interaction between genetics and environment.' The genetic study of identical twins reared apart helps in understanding how both genetics and environment play a role in shaping an individual's traits and behaviors. This type of study allows researchers to tease apart the effects of genetic inheritance from those of environmental influences. Choices A, B, and D are incorrect because the study of identical twins reared apart specifically focuses on the interplay between genetics and environment, rather than solely on differences in brain function, genetic influence on behavior, or the role of environmental factors alone.

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. What are the potential effects of childhood trauma on adult behavior?

• A. Childhood trauma is typically overcome by adulthood.
• B. Childhood trauma can have long-lasting effects on adult behavior.
• C. Childhood trauma has minimal impact on adult behavior.
• D. Childhood trauma is easily overcome with age.

Correct answer: B

Rationale: Childhood trauma can have profound and lasting effects on behavior and mental health in adulthood. It can lead to various issues such as anxiety, depression, PTSD, and difficulties in forming relationships. Choice A is incorrect because childhood trauma doesn't automatically disappear with age. Choice C is incorrect as research shows that childhood trauma can significantly impact adult behavior. Choice D is incorrect as overcoming childhood trauma is usually a complex and challenging process that may require therapy and support.

4. Which psychosexual stage focuses on castration anxiety?

• A. Genital
• B. Oral
• C. Anal
• D. Phallic

Correct answer: D

Rationale: Castration anxiety is a concept from Freudian psychoanalytic theory that occurs during the Phallic stage. This stage occurs between 3 to 6 years of age and is when children experience conflicts related to the Oedipus complex (boys) and Electra complex (girls). During this stage, children may fear castration (in boys) or penis envy (in girls), which are crucial components of castration anxiety. Therefore, the correct answer is Phallic. The other options (A: Genital, B: Oral, C: Anal) are incorrect as they do not specifically involve castration anxiety but rather represent different stages in Freud's psychosexual development theory.

5. 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.

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