Nursing Elites

1. What is a person's total genetic endowment?

• A. Phenotype
• B. Genotype
• C. Chromosomes
• D. DNA

Correct answer: B

Rationale: The correct answer is B: Genotype. A genotype refers to a person's total genetic endowment, representing the specific genetic makeup inherited from their parents. This includes all the genes and genetic information contained in an individual's DNA. Choices A, C, and D are incorrect because: A) Phenotype refers to the observable characteristics resulting from the interaction of genetics and the environment; C) Chromosomes are physical structures that contain genes, not the total genetic endowment itself; D) DNA carries genetic information but is just one component of an individual's total genetic endowment.

2. Which parenting style is associated with the most positive developmental outcome?

• A. Authoritarian
• B. Permissive/indulgent
• C. Authoritative
• D. Neglectful/uninvolved

Correct answer: C

Rationale: The authoritative parenting style is associated with the most positive developmental outcomes. Authoritative parents are responsive to their children's needs while also setting clear expectations and boundaries. This balance fosters a supportive environment that allows children to develop autonomy, self-confidence, and social skills. Authoritarian parenting (choice A) is characterized by strict rules and harsh discipline, leading to less favorable outcomes. Permissive/indulgent parenting (choice B) involves being lenient and overly responsive, which can result in children lacking self-discipline. Neglectful/uninvolved parenting (choice D) is marked by a lack of responsiveness and involvement, resulting in negative developmental outcomes.

3. 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.

4. Which part of your brain is active when you get cues about being hungry, thirsty, or sleepy?

• A. Hippocampus
• B. Thalamus
• C. Hypothalamus
• D. Amygdala

Correct answer: C

Rationale: The correct answer is the Hypothalamus (Choice C). The hypothalamus plays a crucial role in regulating basic bodily functions such as hunger, thirst, and sleep. It receives cues related to these needs and helps to maintain homeostasis in the body. The Hippocampus (Choice A) is primarily involved in memory formation and spatial navigation, not in regulating physiological needs. The Thalamus (Choice B) acts as a relay station for sensory information but is not the main center for hunger, thirst, or sleep regulation. The Amygdala (Choice D) is more associated with emotions, particularly fear and pleasure, rather than physiological needs like hunger, thirst, or sleep.

5. 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.

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