Question 1

Which situation is most consistent with the results of twin studies of schizophrenia?

Accepted Answer

A)  When both twins carry the gene for schizophrenia, only one will develop symptoms. 
B)  Schizophrenia is more likely to materialize in a twin who experiences extreme stress. 
C)  Twins who inherit the gene for schizophrenia very rarely present symptoms of the disorder. 
D)  Having a father with schizophrenia greatly increases the chance that male twins will develop the disorder. 
A)  When both twins carry the gene for schizophrenia, only one will develop symptoms. 
B)  Schizophrenia is more likely to materialize in a twin who experiences extreme stress. 
C)  Twins who inherit the gene for schizophrenia very rarely present symptoms of the disorder. 
D)  Having a father with schizophrenia greatly increases the chance that male twins will develop the disorder. B

Question 2

Scientists consider _______ to be the building blocks of life on Earth.

Accepted Answer

proteins

Question 3

Cooper and Zubek (1958) showed that gene-environment interactions were at play in a study by illustrating that

Accepted Answer

A)  "Maze-bright" rats raised in "impoverished" environments were always better at navigating mazes than "maze-bright" rats raised in "enriched" environments. 
B)  "Maze-dull" rats raised in "enriched" environments eventually learned to navigate mazes as well as "maze-bright" rats raised in "enriched" environments. 
C)  "Maze-bright" rats raised in "impoverished" environments were worse at navigating mazes than "maze-dull" rats raised in "impoverished" environments. 
D)  "Maze-dull" rats raised in "impoverished" environments were always worse at navigating mazes than "maze-bright" rats raised in "impoverished" environments. 
A)  "Maze-bright" rats raised in "impoverished" environments were always better at navigating mazes than "maze-bright" rats raised in "enriched" environments. 
B)  "Maze-dull" rats raised in "enriched" environments eventually learned to navigate mazes as well as "maze-bright" rats raised in "enriched" environments. 
C)  "Maze-bright" rats raised in "impoverished" environments were worse at navigating mazes than "maze-dull" rats raised in "impoverished" environments. 
D)  "Maze-dull" rats raised in "impoverished" environments were always worse at navigating mazes than "maze-bright" rats raised in "impoverished" environments. B

Question 4

Use the following to answer questions:
Refer to the graph below.
  
-On which basis do the data in the graph best support a high heritability for schizophrenia?

Accepted Answer

A)  Dizygotic twins have a greater likelihood of being concordant for schizophrenia than monozygotic twins. 
B)  The likelihood of schizophrenia varies with the degree of genetic similarity to someone with the condition. 
C)  Monozygotic twins have a greater likelihood of being discordant for schizophrenia than other pairs of siblings. 
D)  The likelihood of schizophrenia varies with the degree of environmental similarity to someone with the condition. 
A)  Dizygotic twins have a greater likelihood of being concordant for schizophrenia than monozygotic twins. 
B)  The likelihood of schizophrenia varies with the degree of genetic similarity to someone with the condition. 
C)  Monozygotic twins have a greater likelihood of being discordant for schizophrenia than other pairs of siblings. 
D)  The likelihood of schizophrenia varies with the degree of environmental similarity to someone with the condition.

Question 5

Which statement must be true if twins are concordant for the trait of blue eyes?

Accepted Answer

A)  Both of them have blue eyes. 
B)  Only one of them has blue eyes. 
C)  Both of them have had eyes of another color for their entire lives. 
D)  At least one of them experienced a change in eye color. 
A)  Both of them have blue eyes. 
B)  Only one of them has blue eyes. 
C)  Both of them have had eyes of another color for their entire lives. 
D)  At least one of them experienced a change in eye color.

Question 6

The process by which a cell directs a gene to make a certain protein is called

Accepted Answer

A)  gene expression. 
B)  DNA extraction. 
C)  chromosome assembly. 
D)  genetic modification. 
A)  gene expression. 
B)  DNA extraction. 
C)  chromosome assembly. 
D)  genetic modification.

Question 7

All of the following statements regarding gene-environment interactions is true except

Accepted Answer

A)  Genes determine whether an environmental factor will affect behavior. 
B)  Genes influence every human behavior, but no gene determines behavior. 
C)  The environment has the same effect on behavior regardless of genes. 
D)  The environment determines whether a gene will affect behavior. 
A)  Genes determine whether an environmental factor will affect behavior. 
B)  Genes influence every human behavior, but no gene determines behavior. 
C)  The environment has the same effect on behavior regardless of genes. 
D)  The environment determines whether a gene will affect behavior.

Question 8

An individual typically possesses _______ allele(s) for each gene.

Accepted Answer

A)  1 
B)  2 
C)  20 
D)  46 
A)  1 
B)  2 
C)  20 
D)  46

Question 9

When scientists study a phenomenon like schizophrenia, two variables often change together, making it difficult to know which one is at work. These variables are called

Accepted Answer

A)  categorical variables. 
B)  intervening variables. 
C)  confounding variables. 
D)  covariables. 
A)  categorical variables. 
B)  intervening variables. 
C)  confounding variables. 
D)  covariables.

Question 10

The rod-shaped cellular structures that contain human DNA are called

Accepted Answer

A)  lipids. 
B)  ribosomes. 
C)  mitochondria. 
D)  chromosomes. 
A)  lipids. 
B)  ribosomes. 
C)  mitochondria. 
D)  chromosomes.

Question 11

Which statement best supports the claim that environmental factors played a major role in the development of schizophrenia in the Genain quadruplets?

Accepted Answer

A)  All of the girls suffered physical abuse to varying degrees. 
B)  They all grew up in the same household. 
C)  They possessed the same allele for the condition. 
D)  They were monozygotic siblings. 
A)  All of the girls suffered physical abuse to varying degrees. 
B)  They all grew up in the same household. 
C)  They possessed the same allele for the condition. 
D)  They were monozygotic siblings.

Question 12

You believe that people are born with musical talent and thus, you attribute musical ability to _______.

Accepted Answer

The answer of You believe that people are born with...

Question 13

Twin studies of the heritability of schizophrenia generally show that

Accepted Answer

A)  there is a 50 percent difference in the genomes between those with schizophrenia and those without it. 
B)  90 percent of twins who inherit genes for schizophrenia will develop symptoms. 
C)  monozygotic twins tend not to inherit genes for schizophrenia. 
D)  the heritability of schizophrenia is about 50 percent. 
A)  there is a 50 percent difference in the genomes between those with schizophrenia and those without it. 
B)  90 percent of twins who inherit genes for schizophrenia will develop symptoms. 
C)  monozygotic twins tend not to inherit genes for schizophrenia. 
D)  the heritability of schizophrenia is about 50 percent.

Question 14

Which factor best explains why women are much less likely than men to experience red-green color blindness?

Accepted Answer

A)  Women possess a certain dominant allele. 
B)  Women lack a certain recessive allele. 
C)  Women lack Y chromosomes. 
D)  Women have two X chromosomes. 
A)  Women possess a certain dominant allele. 
B)  Women lack a certain recessive allele. 
C)  Women lack Y chromosomes. 
D)  Women have two X chromosomes.

Question 15

If a study finds that the heritability of aggression is 40 percent, it means that

Accepted Answer

A)  40 percent of the population will behave very aggressively. 
B)  a person who commits a crime has a 40 percent chance of having aggressive parents. 
C)  only one of a set of identical twins born to aggressive parents will inherit aggression. 
D)  40 percent of the variability in aggression in the population is due to variations in the genes in that population. 
A)  40 percent of the population will behave very aggressively. 
B)  a person who commits a crime has a 40 percent chance of having aggressive parents. 
C)  only one of a set of identical twins born to aggressive parents will inherit aggression. 
D)  40 percent of the variability in aggression in the population is due to variations in the genes in that population.

Question 16

Studies estimate that the heritability of schizophrenia is 48 percent for _______ twins, but only 1 percent of the population will actually develop the disorder.

Accepted Answer

monozygoti

Question 17

Imagine that a single dysfunctional allele for a given gene could derail our ability to see at birth. How could two people who were blind for that reason have a child with normal vision?

Accepted Answer

A)  If the allele was recessive, the child could carry one dysfunctional and one functional allele. 
B)  If the allele was dominant, the child could carry only a functional allele. 
C)  If the child inherited only recessive alleles for that gene, the child would have normal vision. 
D)  If the child inherited only dominant alleles for that gene, the child would have normal vision would. 
A)  If the allele was recessive, the child could carry one dysfunctional and one functional allele. 
B)  If the allele was dominant, the child could carry only a functional allele. 
C)  If the child inherited only recessive alleles for that gene, the child would have normal vision. 
D)  If the child inherited only dominant alleles for that gene, the child would have normal vision would.

Question 18

Each of our _______ consists of tightly coiled DNA.

Accepted Answer

A)  chromosomes 
B)  cell proteins 
C)  nucleotides 
D)  amino acids 
A)  chromosomes 
B)  cell proteins 
C)  nucleotides 
D)  amino acids

Question 19

Identical twins are called _______, while non-identical twins are called _______.

Accepted Answer

A)  monozygotic; dizygotic 
B)  monozygotic; heterozygotic 
C)  homozygotic; monozygotic 
D)  dizygotic; heterozygotic 
A)  monozygotic; dizygotic 
B)  monozygotic; heterozygotic 
C)  homozygotic; monozygotic 
D)  dizygotic; heterozygotic

Question 20

Why is your phenotype fundamentally linked to your sensory experiences?

Accepted Answer

The neural activity

Which situation is most consistent with the results of twin studies of schizophrenia?

Scientists consider _______ to be the building blocks of life on Earth.

Cooper and Zubek (1958) showed that gene-environment interactions were at play in a study by illustrating that

Use the following to answer questions: Refer to the graph below. -On which basis do the data in the graph best support a high heritability for schizophrenia?

Which statement must be true if twins are concordant for the trait of blue eyes?

The process by which a cell directs a gene to make a certain protein is called

All of the following statements regarding gene-environment interactions is true except

An individual typically possesses _______ allele(s) for each gene.

When scientists study a phenomenon like schizophrenia, two variables often change together, making it difficult to know which one is at work. These variables are called

The rod-shaped cellular structures that contain human DNA are called

Which statement best supports the claim that environmental factors played a major role in the development of schizophrenia in the Genain quadruplets?

You believe that people are born with musical talent and thus, you attribute musical ability to _______.

Twin studies of the heritability of schizophrenia generally show that

Which factor best explains why women are much less likely than men to experience red-green color blindness?

If a study finds that the heritability of aggression is 40 percent, it means that

Studies estimate that the heritability of schizophrenia is 48 percent for _______ twins, but only 1 percent of the population will actually develop the disorder.

Imagine that a single dysfunctional allele for a given gene could derail our ability to see at birth. How could two people who were blind for that reason have a child with normal vision?

Each of our _______ consists of tightly coiled DNA.

Identical twins are called _, while non-identical twins are called _.

Why is your phenotype fundamentally linked to your sensory experiences?

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

Which situation is most consistent with the results of twin studies of schizophrenia?

Scientists consider _______ to be the building blocks of life on Earth.

Cooper and Zubek (1958) showed that gene-environment interactions were at play in a study by illustrating that

Use the following to answer questions: Refer to the graph below. -On which basis do the data in the graph best support a high heritability for schizophrenia?

Which statement must be true if twins are concordant for the trait of blue eyes?

The process by which a cell directs a gene to make a certain protein is called

All of the following statements regarding gene-environment interactions is true except

An individual typically possesses _______ allele(s) for each gene.

When scientists study a phenomenon like schizophrenia, two variables often change together, making it difficult to know which one is at work. These variables are called

The rod-shaped cellular structures that contain human DNA are called

Which statement best supports the claim that environmental factors played a major role in the development of schizophrenia in the Genain quadruplets?

You believe that people are born with musical talent and thus, you attribute musical ability to _______.

Twin studies of the heritability of schizophrenia generally show that

Which factor best explains why women are much less likely than men to experience red-green color blindness?

If a study finds that the heritability of aggression is 40 percent, it means that

Studies estimate that the heritability of schizophrenia is 48 percent for _______ twins, but only 1 percent of the population will actually develop the disorder.

Imagine that a single dysfunctional allele for a given gene could derail our ability to see at birth. How could two people who were blind for that reason have a child with normal vision?

Each of our _______ consists of tightly coiled DNA.

Identical twins are called _______, while non-identical twins are called _______.

Why is your phenotype fundamentally linked to your sensory experiences?

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

Identical twins are called _, while non-identical twins are called _.