Question 1

Proteins are composed of combinations of as many as _______ different amino acids.

Accepted Answer

A)  20 
B)  23 
C)  40 
D)  46 
A)  20 
B)  23 
C)  40 
D)  46

Question 2

Your first cell began making proteins when your father's sperm fused with your mother's egg in the process of

Accepted Answer

A)  natural selection. 
B)  epigenetics. 
C)  fertilization. 
D)  spermatization. 
A)  natural selection. 
B)  epigenetics. 
C)  fertilization. 
D)  spermatization.

Question 3

Use the following to answer questions:
Refer to the graph below.
  
-According to the graph, an identical twin's lifetime risk of developing schizophrenia when his twin has it is _______ percent higher than that of a fraternal twin whose twin has it.

Accepted Answer

A)  4 
B)  8 
C)  31 
D)  42 
A)  4 
B)  8 
C)  31 
D)  42

Question 4

Walker and Lewine's observations of twin babies who later became discordant for schizophrenia revealed that the twin who developed schizophrenia

Accepted Answer

A)  commonly showed inferior problem-solving skills, compared to the other twin. 
B)  commonly showed more disorganized behavior, compared to the other twin. 
C)  was less likely than the other twin to have experienced highly stressful events. 
D)  was more likely than the other twin to have suffered a physical illness at a young age. 
A)  commonly showed inferior problem-solving skills, compared to the other twin. 
B)  commonly showed more disorganized behavior, compared to the other twin. 
C)  was less likely than the other twin to have experienced highly stressful events. 
D)  was more likely than the other twin to have suffered a physical illness at a young age.

Question 5

Which set of letters correctly identifies the four different nucleotides?

Accepted Answer

A)  ATCG 
B)  ANXY 
C)  RDNA 
D)  RXYT 
A)  ATCG 
B)  ANXY 
C)  RDNA 
D)  RXYT

Question 6

The estimated heritability of 48 percent for neuroticism in the population supports the claim that

Accepted Answer

A)  the incidence of neuroticism is associated with that of another distinct trait. 
B)  those with the neurotic trait share a particular dominant allele. 
C)  the population in general has a recessive gene for neuroticism. 
D)  the variability in neuroticism is due partly to genetic variability in the population. 
A)  the incidence of neuroticism is associated with that of another distinct trait. 
B)  those with the neurotic trait share a particular dominant allele. 
C)  the population in general has a recessive gene for neuroticism. 
D)  the variability in neuroticism is due partly to genetic variability in the population.

Question 7

Which statement supports the relationship between behavior and gene expression?

Accepted Answer

A)  A person can change his or her genome only with medical treatment. 
B)  By repeating an activity many times, a person can affect how certain genes are expressed in the brain. 
C)  Behavior affects gene expression in infancy, and then the environment takes over. 
D)  Elderly people are more susceptible to behavioral shifts because their gene expression is unstable. 
A)  A person can change his or her genome only with medical treatment. 
B)  By repeating an activity many times, a person can affect how certain genes are expressed in the brain. 
C)  Behavior affects gene expression in infancy, and then the environment takes over. 
D)  Elderly people are more susceptible to behavioral shifts because their gene expression is unstable.

Question 8

In general, it is easier for psychologists and biologists to determine the influence of genes on behavior when the underlying cause of that behavior can be attributed to

Accepted Answer

A)  chance, rather than genetics. 
B)  a single gene rather than multiple genes. 
C)  multiple related genes, rather than a single gene. 
D)  the workings of multiple unrelated genes. 
A)  chance, rather than genetics. 
B)  a single gene rather than multiple genes. 
C)  multiple related genes, rather than a single gene. 
D)  the workings of multiple unrelated genes.

Question 9

According to the process of natural selection, a mutation

Accepted Answer

A)  will disappear from the genomes of future generations if it improves survival and reproduction. 
B)  will accumulate in the genomes of future generations if it improves survival and reproduction. 
C)  will accumulate in the genomes of future generations if it improves survival, but not reproduction. 
D)  can never be fully incorporated into the genomes of future generations. 
A)  will disappear from the genomes of future generations if it improves survival and reproduction. 
B)  will accumulate in the genomes of future generations if it improves survival and reproduction. 
C)  will accumulate in the genomes of future generations if it improves survival, but not reproduction. 
D)  can never be fully incorporated into the genomes of future generations.

Question 10

Which confounding variable is teased out when psychologists study the traits of identical twins?

Accepted Answer

A)  Similar environments shared by relatives 
B)  Shared zygotes of monozygotic twins 
C)  The influence of dysfunctional alleles 
D)  The genetic influence of the huntingtin gene 
A)  Similar environments shared by relatives 
B)  Shared zygotes of monozygotic twins 
C)  The influence of dysfunctional alleles 
D)  The genetic influence of the huntingtin gene

Question 11

Epigenetics is most concerned with

Accepted Answer

A)  changes in a person's genotype resulting from environmental influences. 
B)  the expression of a particular gene as influenced by external inputs. 
C)  environmental influences on gene expression over experiential influences. 
D)  the heritability of genotypes that have been altered over multiple generations. 
A)  changes in a person's genotype resulting from environmental influences. 
B)  the expression of a particular gene as influenced by external inputs. 
C)  environmental influences on gene expression over experiential influences. 
D)  the heritability of genotypes that have been altered over multiple generations.

Question 12

The most important non-genetic influence on the development of schizophrenia is _______.

Accepted Answer

The answer of The most important non-genetic influence on the...

Question 13

Which term refers to specific lengths of DNA that carry information needed to make the proteins that are required for proper bodily functioning?

Accepted Answer

A)  Ribosomes 
B)  RNA 
C)  Genes 
D)  Amino acids 
A)  Ribosomes 
B)  RNA 
C)  Genes 
D)  Amino acids

Question 14

Using the example of alcoholism (estimate of heritability = 0.55), describe a correct and incorrect conclusion that can be drawn about the heritability of the condition.

Accepted Answer

The correct interpretation of the herita

Question 15

Which factor is most closely associated with the eventual onset of schizophrenia?

Accepted Answer

A)  Habitual drug use 
B)  Growing up in a big city 
C)  A diet low in carbohydrates 
D)  Excessive amounts of sleep 
A)  Habitual drug use 
B)  Growing up in a big city 
C)  A diet low in carbohydrates 
D)  Excessive amounts of sleep

Question 16

Provide supporting evidence for the claim that environmental stressors, along with genes, are important precursors to the manifestation of schizophrenic symptoms.

Accepted Answer

The best examples for the role that envi

Question 17

What is the key difference between twin studies and adoption studies?

Accepted Answer

A)  Twin studies involve identical twins, while adoption studies involve fraternal twins. 
B)  In twin studies, the effects of the environment are not taken into consideration. 
C)  In adoption studies, twins are separated at birth, adopted, and raised apart. 
D)  Adoption studies involve non-twin biological siblings raised by different families. 
A)  Twin studies involve identical twins, while adoption studies involve fraternal twins. 
B)  In twin studies, the effects of the environment are not taken into consideration. 
C)  In adoption studies, twins are separated at birth, adopted, and raised apart. 
D)  Adoption studies involve non-twin biological siblings raised by different families.

Question 18

How is it possible for two deaf parents to have multiple children who can hear, if the genes for deafness are recessive?

Accepted Answer

There are multiple genes that govern our

Question 19

Which result provides evidence that genes play a role in schizophrenia?

Accepted Answer

A)  Only about 1 percent of the population displays schizophrenia. 
B)  Children of identical twins, one of whom had schizophrenia, are more likely to develop the disorder, regardless of whether their parent was the twin with schizophrenia or the twin without it. 
C)  Identical twins are more likely to be discordant for schizophrenia than non-identical twins are. 
D)  Parents of identical twins with schizophrenia are more likely to show symptoms of the disorder, even after their children's symptoms are in remission. 
A)  Only about 1 percent of the population displays schizophrenia. 
B)  Children of identical twins, one of whom had schizophrenia, are more likely to develop the disorder, regardless of whether their parent was the twin with schizophrenia or the twin without it. 
C)  Identical twins are more likely to be discordant for schizophrenia than non-identical twins are. 
D)  Parents of identical twins with schizophrenia are more likely to show symptoms of the disorder, even after their children's symptoms are in remission.

Question 20

Why are dominant, yet harmful, alleles like the huntingtin gene so rare in our genomes?

Accepted Answer

A)  Only a few harmful alleles affect the nervous system. 
B)  The carrier does not survive long enough to pass on the allele. 
C)  The alleles for disorders are not active until adulthood. 
D)  The allele can be transmitted only to another dominant carrier. 
A)  Only a few harmful alleles affect the nervous system. 
B)  The carrier does not survive long enough to pass on the allele. 
C)  The alleles for disorders are not active until adulthood. 
D)  The allele can be transmitted only to another dominant carrier.

Proteins are composed of combinations of as many as _______ different amino acids.

Your first cell began making proteins when your father's sperm fused with your mother's egg in the process of

Use the following to answer questions: Refer to the graph below. -According to the graph, an identical twin's lifetime risk of developing schizophrenia when his twin has it is _______ percent higher than that of a fraternal twin whose twin has it.

Walker and Lewine's observations of twin babies who later became discordant for schizophrenia revealed that the twin who developed schizophrenia

Which set of letters correctly identifies the four different nucleotides?

The estimated heritability of 48 percent for neuroticism in the population supports the claim that

Which statement supports the relationship between behavior and gene expression?

In general, it is easier for psychologists and biologists to determine the influence of genes on behavior when the underlying cause of that behavior can be attributed to

According to the process of natural selection, a mutation

Which confounding variable is teased out when psychologists study the traits of identical twins?

Epigenetics is most concerned with

The most important non-genetic influence on the development of schizophrenia is _______.

Which term refers to specific lengths of DNA that carry information needed to make the proteins that are required for proper bodily functioning?

Using the example of alcoholism (estimate of heritability = 0.55), describe a correct and incorrect conclusion that can be drawn about the heritability of the condition.

Which factor is most closely associated with the eventual onset of schizophrenia?

Provide supporting evidence for the claim that environmental stressors, along with genes, are important precursors to the manifestation of schizophrenic symptoms.

What is the key difference between twin studies and adoption studies?

How is it possible for two deaf parents to have multiple children who can hear, if the genes for deafness are recessive?

Which result provides evidence that genes play a role in schizophrenia?

Why are dominant, yet harmful, alleles like the huntingtin gene so rare in our genomes?

Introduction: Principles of Psychology

Psychology As a Science

The Neuroscience of Behavior

Developmental Psychology

Sensation and Perception

Consciousness

Learning

Memory

Language and Cognition

Intelligence

Motivation and the Regulation of Behavior

Emotions, Stress, and Health

Personality

Social Psychology

Clinical Psychology

Filters

Exam 4: Genes, Environment, and Behavior

Proteins are composed of combinations of as many as _______ different amino acids.

Your first cell began making proteins when your father's sperm fused with your mother's egg in the process of

Use the following to answer questions: Refer to the graph below. -According to the graph, an identical twin's lifetime risk of developing schizophrenia when his twin has it is _______ percent higher than that of a fraternal twin whose twin has it.

Walker and Lewine's observations of twin babies who later became discordant for schizophrenia revealed that the twin who developed schizophrenia

Which set of letters correctly identifies the four different nucleotides?

The estimated heritability of 48 percent for neuroticism in the population supports the claim that

Which statement supports the relationship between behavior and gene expression?

In general, it is easier for psychologists and biologists to determine the influence of genes on behavior when the underlying cause of that behavior can be attributed to

According to the process of natural selection, a mutation

Which confounding variable is teased out when psychologists study the traits of identical twins?

Epigenetics is most concerned with

The most important non-genetic influence on the development of schizophrenia is _______.

Which term refers to specific lengths of DNA that carry information needed to make the proteins that are required for proper bodily functioning?

Using the example of alcoholism (estimate of heritability = 0.55), describe a correct and incorrect conclusion that can be drawn about the heritability of the condition.

Which factor is most closely associated with the eventual onset of schizophrenia?

Provide supporting evidence for the claim that environmental stressors, along with genes, are important precursors to the manifestation of schizophrenic symptoms.

What is the key difference between twin studies and adoption studies?

How is it possible for two deaf parents to have multiple children who can hear, if the genes for deafness are recessive?

Which result provides evidence that genes play a role in schizophrenia?

Why are dominant, yet harmful, alleles like the huntingtin gene so rare in our genomes?

Introduction: Principles of Psychology

Psychology As a Science

The Neuroscience of Behavior

Developmental Psychology

Sensation and Perception

Consciousness

Learning

Memory

Language and Cognition

Intelligence

Motivation and the Regulation of Behavior

Emotions, Stress, and Health

Personality

Social Psychology

Clinical Psychology

Filters