ATI RN
Psychology 2301 Exam 1
1. Normal human cells have ________
- A. twenty-two chromosome pairs and one pair of sex chromosomes.
- B. twenty-one trisomy chromosome pairs, one autosomal pair, and one pair of sex chromosomes.
- C. twenty-one chromosome pairs and two trisomy chromosome pairs.
- D. twenty-three chromosome pairs.
Correct answer: A
Rationale: Normal human cells have twenty-two chromosome pairs and one pair of sex chromosomes. This is the correct answer as it accurately describes the typical chromosome count in human cells. Choice B is incorrect because it mentions 'twenty-one trisomy chromosome pairs,' which is not characteristic of normal cells. Choice C is incorrect as it suggests having 'two trisomy chromosome pairs,' which is abnormal. Choice D is incorrect as it states 'twenty-three chromosome pairs,' which is not the standard count in normal human cells.
2. When examining heredity, mental disorders are almost always ________
- A. influenced by one particular gene.
- B. influenced by multiple genes.
- C. influenced by recessive genes.
- D. not influenced by genes.
Correct answer: B
Rationale: When examining heredity, mental disorders are influenced by multiple genes. Mental disorders are complex conditions that typically result from a combination of genetic, environmental, and other factors. While genetics play a significant role in predisposing individuals to mental disorders, it is rare for a single gene to be solely responsible for a mental disorder. Therefore, choice B is correct. Choices A, C, and D are incorrect because mental disorders are not usually influenced by one particular gene, recessive genes specifically, or not influenced by genes at all.
3. 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.
4. What are psychology's intellectual parents?
- A. Physics and physiology.
- B. Philosophy and physiology.
- C. Chemistry and physics.
- D. Philosophy and chemistry.
Correct answer: B
Rationale: Psychology's intellectual parents are philosophy and physiology. Philosophy contributed to the early development of psychology by exploring questions about the mind and behavior, while physiology provided a scientific foundation for understanding the biological aspects of human psychology. Choices A, C, and D are incorrect as they do not accurately represent the disciplines that significantly influenced the emergence of psychology as a distinct field of study.
5. Marissa wants to study people's emotional reactions to increases in temperature. Her classmate, Bernard, tells her that she should focus on observable behaviors rather than internal states in her study. Bernard's views are most similar to those found in?
- A. The psychodynamic perspective.
- B. The evolutionary perspective.
- C. The behavioral perspective.
- D. The biological perspective.
Correct answer: C
Rationale: Bernard's advice to focus on observable behaviors aligns with the behavioral perspective. Behaviorists emphasize studying external actions rather than internal states to understand human behavior. The psychodynamic perspective (Choice A) focuses on unconscious processes, the evolutionary perspective (Choice B) on adaptation and natural selection, and the biological perspective (Choice D) on the biological underpinnings of behavior, making them less similar to Bernard's suggestion.
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