BCG QUIZ 2 WITH QUESTIONS,
ANSWERS AND RATIONALE 2025
Twin boys both have a gene associated with aggressive tendencies. What is the most likely
outcome to be observed in their behavior as they grow up?
A) The twins both have the gene, so they likely will be aggressive in some way.
B) It is unlikely that either will show aggressive tendencies.
C) The chances of significant aggressive tendencies are about 50:50, so one of the twins will
likely show these behaviors.
D) It is not possible to determine the twins' behaviors based on having this single gene. -------
Correct Ans ---------- D) It is not possible to determine the twins' behaviors based on having this
single gene.
The ________ is involved in our experience of emotion and tying emotional meaning to our
memories.
A) corpus callosum
B) hypothalamus
C) amygdala
D) pons ------- Correct Ans ---------- C) amygdala
The two major divisions of the nervous system are the ________ and ________.
A) central; peripheral nervous systems
B) autonomic; sympathetic nervous systems
C) autonomic; somatic nervous systems
,D) parasympathetic; sympathetic nervous systems ------- Correct Ans ---------- A) central;
peripheral nervous systems
Of adoptees whose biological mothers had schizophrenia and who were raised in disturbed
family environments, 36.8% were likely to develop schizophrenia; of adoptees whose mothers
did not have schizophrenia and who were raised in disturbed family environments, 5.3% were
likely to develop schizophrenia. What is the most appropriate conclusion of these results?
A) Environmental factors are most important to determining whether a person is likely to
develop schizophrenia.
B) Environmental factors and genetic factors interact to determine whether a person is likely to
develop schizophrenia.
C) Not enough information is provided in order to make a conclusion about environmental
versus genetic contributions to schizophrenia.
D) Genetic factors are most important to determining whether a person is likely to develop
schizophrenia. ------- Correct Ans ---------- B) Environmental factors and genetic factors interact
to determine whether a person is likely to develop schizophrenia.
The central nervous system consists of the brain and the ________.
A) spinal cord
B) brainstem
C) internal organs
D) peripheral nerves ------- Correct Ans ---------- A) spinal cord
Randolf is walking down the street of his hometown, after being away for several years, when
he smells the scent of freshly baked pie coming from a local baker. He suddenly has vivid
memories of walking down this street as a child, holding both of his parents' hands, and
swinging between them, feeling relaxed and happy. This is because the sense of smell projects
directly to the ________, which is responsible for ________ memories.
, A) basal ganglia; childhood
B) limbic system; emotional
C) limbic system; childhood
D) basal ganglia; emotional ------- Correct Ans ---------- B) limbic system; emotional
The auditory cortex is located in which lobe of the brain?
A) occipital
B) parietal
C) temporal
D) frontal ------- Correct Ans ---------- C) temporal
Samek was driving to work when he suddenly felt paralyzed and couldn't resist falling asleep.
Samek may have ________.
A) narcolepsy
B) a stroke
C) REM sleep behavior disorder (RBD)
D) damage to his K-complex ------- Correct Ans ---------- A) narcolepsy
Which of the following statements about sleep deprivation is false?
A) Sleep deprivation is associated with obesity.
B) Sleep deprivation can result in decreased mental alertness and cognitive function.
C) Sleep deprivation often results in depression-like symptoms.
ANSWERS AND RATIONALE 2025
Twin boys both have a gene associated with aggressive tendencies. What is the most likely
outcome to be observed in their behavior as they grow up?
A) The twins both have the gene, so they likely will be aggressive in some way.
B) It is unlikely that either will show aggressive tendencies.
C) The chances of significant aggressive tendencies are about 50:50, so one of the twins will
likely show these behaviors.
D) It is not possible to determine the twins' behaviors based on having this single gene. -------
Correct Ans ---------- D) It is not possible to determine the twins' behaviors based on having this
single gene.
The ________ is involved in our experience of emotion and tying emotional meaning to our
memories.
A) corpus callosum
B) hypothalamus
C) amygdala
D) pons ------- Correct Ans ---------- C) amygdala
The two major divisions of the nervous system are the ________ and ________.
A) central; peripheral nervous systems
B) autonomic; sympathetic nervous systems
C) autonomic; somatic nervous systems
,D) parasympathetic; sympathetic nervous systems ------- Correct Ans ---------- A) central;
peripheral nervous systems
Of adoptees whose biological mothers had schizophrenia and who were raised in disturbed
family environments, 36.8% were likely to develop schizophrenia; of adoptees whose mothers
did not have schizophrenia and who were raised in disturbed family environments, 5.3% were
likely to develop schizophrenia. What is the most appropriate conclusion of these results?
A) Environmental factors are most important to determining whether a person is likely to
develop schizophrenia.
B) Environmental factors and genetic factors interact to determine whether a person is likely to
develop schizophrenia.
C) Not enough information is provided in order to make a conclusion about environmental
versus genetic contributions to schizophrenia.
D) Genetic factors are most important to determining whether a person is likely to develop
schizophrenia. ------- Correct Ans ---------- B) Environmental factors and genetic factors interact
to determine whether a person is likely to develop schizophrenia.
The central nervous system consists of the brain and the ________.
A) spinal cord
B) brainstem
C) internal organs
D) peripheral nerves ------- Correct Ans ---------- A) spinal cord
Randolf is walking down the street of his hometown, after being away for several years, when
he smells the scent of freshly baked pie coming from a local baker. He suddenly has vivid
memories of walking down this street as a child, holding both of his parents' hands, and
swinging between them, feeling relaxed and happy. This is because the sense of smell projects
directly to the ________, which is responsible for ________ memories.
, A) basal ganglia; childhood
B) limbic system; emotional
C) limbic system; childhood
D) basal ganglia; emotional ------- Correct Ans ---------- B) limbic system; emotional
The auditory cortex is located in which lobe of the brain?
A) occipital
B) parietal
C) temporal
D) frontal ------- Correct Ans ---------- C) temporal
Samek was driving to work when he suddenly felt paralyzed and couldn't resist falling asleep.
Samek may have ________.
A) narcolepsy
B) a stroke
C) REM sleep behavior disorder (RBD)
D) damage to his K-complex ------- Correct Ans ---------- A) narcolepsy
Which of the following statements about sleep deprivation is false?
A) Sleep deprivation is associated with obesity.
B) Sleep deprivation can result in decreased mental alertness and cognitive function.
C) Sleep deprivation often results in depression-like symptoms.
