Nursing Elites

1. During conception, the 23 unpaired chromosomes in the ovum and sperm combine to form 23 pairs in an entirely new cell called the?

• A. Embryo
• B. DNA
• C. Fetus
• D. Zygote

Correct answer: D

Rationale: The correct answer is D, Zygote. A zygote is formed when the 23 chromosomes from the ovum and sperm combine during conception. It is the initial cell formed and marks the beginning of a new organism. Choice A, Embryo, is incorrect as an embryo is formed later in the development process. Choice B, DNA, is incorrect as DNA is the genetic material within the chromosomes but is not the name of the new cell formed after fertilization. Choice C, Fetus, is incorrect as a fetus is the stage of prenatal development that occurs well after the zygote stage.

2. What are genes made of?

• A. Trisomes
• B. Chromosomes
• C. DNA
• D. Proteins

Correct answer: C

Rationale: Genes are made of DNA, which is the genetic material that carries the instructions for the development, functioning, growth, and reproduction of organisms. While chromosomes contain genes, they are not what genes themselves are made of. Proteins are involved in gene expression and regulation, but they are not the primary material genes consist of. Trisomes is an incorrect term in this context and does not relate to the composition of genes.

3. Which disorder is characterized by a pattern of behavior that involves culturally inappropriate, overly familiar behavior with relative strangers?

• A. Schizoid personality disorder
• B. Autism spectrum disorder
• C. Reactive attachment disorder
• D. Disinhibited social engagement disorder

Correct answer: D

Rationale: Disinhibited social engagement disorder is the correct answer because it is characterized by a pattern of behavior involving culturally inappropriate and overly familiar behavior with relative strangers. This disorder is marked by a lack of social boundaries and caution when interacting with unfamiliar individuals. Schizoid personality disorder (Choice A) is characterized by a lack of interest in social relationships, Autism spectrum disorder (Choice B) involves challenges with social interactions and communication, and Reactive attachment disorder (Choice C) is typically associated with difficulty forming emotional bonds with caregivers, not with overly familiar behavior with strangers.

4. Charles has suffered from schizophrenia for many years and now resides in a group treatment facility. One day a nurse approaches him and quietly tells him that his sister, who has been fighting cancer for many months, died that morning. Charles has no appreciable facial reaction and in a very monotone voice says, 'okay.' The nurse is not surprised by Charles's lack of response to the awful news because she knows that _________ is one symptom often seen in those suffering from schizophrenia?

• A. Clang associations
• B. Echolalia
• C. Blunted affect
• D. Perseveration

Correct answer: C

Rationale: In individuals with schizophrenia, blunted affect, or reduced emotional expression, is a common symptom. In this scenario, Charles's lack of emotional response upon hearing about his sister's death aligns with the characteristic of blunted affect. This symptom can manifest as a limited range of facial expressions, monotone voice, and reduced display of emotions. Choice A, 'Clang associations,' refers to a thought disorder characterized by the use of words that sound alike but are not logically connected. Choice B, 'Echolalia,' is the repetition of words spoken by others. Choice D, 'Perseveration,' is the persistent repetition of a response or behavior even when it is no longer appropriate.

5. Which of the following is not a common method for studying genetic influences?

• A. The study of specific gene defects
• B. Twin studies
• C. Adoption studies
• D. Family history (pedigree) studies

Correct answer: A

Rationale: The correct answer is A. Studying specific gene defects is not a common method for investigating genetic influences. Choices B, C, and D are common methods used in genetic research. Twin studies help determine the heritability of traits, adoption studies compare similarities between adopted individuals and their adoptive families versus biological families, and family history studies track the inheritance patterns of traits within families.

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