Psychology 2301 Exam 1

Correct Answer: A

Rationale: The correct answer is A. Normal human cells have twenty-two chromosome pairs and one pair of sex chromosomes. This adds up to a total of 46 chromosomes. Choice B is incorrect as it mentions twenty-one trisomy chromosome pairs, which is not a characteristic of normal human cells. Choice C is also incorrect as it states twenty-one chromosome pairs and two trisomy chromosome pairs, which is not accurate for normal human cells. Choice D is incorrect as it mentions twenty-three chromosome pairs, which is not the correct number for normal human cells.

Correct Answer: A

Rationale: Freud believed that mental disorders were a result of unresolved conflicts between the id, ego, and superego. This concept is central to Freud's psychoanalytic theory, where conflicts between these three components of personality lead to psychological distress. Choice B is incorrect because Freud focused more on unconscious conflicts rather than genetic abnormalities. Choice C is incorrect as it refers to later psychodynamic theories rather than Freud's specific view. Choice D is incorrect as Freud's perspective does not emphasize learned behaviors as the primary cause of mental disorders.

Correct Answer: B

Rationale: Common methods used to study genetic influences on behavior include twin studies, adoption studies, and gene mapping. Twin studies help to compare the similarities between identical and fraternal twins to estimate the heritability of a trait. Adoption studies look at the similarities between adopted children and their biological and adoptive parents to determine genetic influences. Gene mapping involves identifying specific genes associated with certain behaviors. Choices A, C, and D are incorrect because genetic influences on behavior are not solely studied through twin studies or family history, and while the understanding of genetic influences may vary, there are established methods to study them.

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.

Correct Answer: B

Rationale: The correct answer is B because behaviorists, from the cognitive-behavioral perspective, are criticized for not considering the significance of mental processes. This limitation is a key point in the cognitive-behavioral perspective, which emphasizes the interplay between thoughts, feelings, and behaviors. Choices A, C, and D are incorrect because they do not directly address the specific limitation of failing to account for mental processes in the behavioral perspective.