down syndrome has been linked to

ATI RN

Psychology 101 Final Exam

1. 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.

2. Sandy took part in the April 2013 Boston Marathon, where two bombs were detonated near the finish line, killing three spectators. For approximately 2 weeks after the marathon, Sandy was unable to sleep or concentrate and often found herself reliving the moment she heard the bombs explode. What disorder might Sandy be diagnosed with?

A. Posttraumatic stress disorder
B. Phobic disorder
C. Panic disorder
D. Acute stress disorder

Correct answer: A

Rationale: Sandy might be diagnosed with posttraumatic stress disorder (PTSD). PTSD typically develops after exposure to a traumatic event and is characterized by symptoms such as re-experiencing the event, avoidance of reminders of the event, negative changes in thoughts and mood, and heightened reactivity. While acute stress disorder can occur shortly after a traumatic event, the duration of symptoms in the scenario suggests a more prolonged impact, aligning with PTSD. Phobic disorder and panic disorder are not as closely related to the described symptoms as PTSD.

3. How can resilience impact the likelihood of developing a mental disorder?

A. Resilience has no impact on mental health outcomes.
B. Resilience can help individuals overcome significant stressors.
C. Resilience is irrelevant to mental health.
D. Resilience is the sole factor that determines mental health outcomes.

Correct answer: B

Rationale: The correct answer is B. Resilience plays a crucial role in mental health outcomes by enabling individuals to navigate and overcome stressors effectively, thus reducing the probability of developing mental disorders. Choice A is incorrect as resilience does have a positive impact on mental health. Choice C is incorrect as resilience is highly relevant to mental health outcomes. Choice D is incorrect because while resilience is important, it is not the only factor influencing mental health.

4. Understanding the causes of mental disorders is important because ________

A. effective treatment is not possible without such an understanding.
B. classification of disorders cannot be done without such information.
C. such knowledge might make both the prevention and cure of mental disorders possible.
D. disagreements about the causes of psychopathology have long limited the advancements made in the study of abnormal psychology.

Correct answer: C

Rationale: Understanding the causes of mental disorders is crucial because it can potentially lead to both prevention and cure. By identifying the root causes, strategies can be developed to prevent the onset of disorders, and effective treatments can be tailored to address these causes directly. This approach can make treatments more efficient, as addressing the underlying factors contributing to the disorder can result in better outcomes for individuals. Choices A and B are incorrect because while understanding causes is important for effective treatment and classification, the primary focus is on prevention and cure. Choice D, while highlighting the impact of disagreements on advancements in abnormal psychology, does not directly address the importance of understanding causes for prevention and cure.

5. 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.