Question 1

Gene expression refers to the

Accepted Answer

A)  division of the chromosomes in half during the formation of eggs and sperm. 
B)  passing along of genes that are located close to one another on a chromosome. 
C)  conversion of genetic instructions into a feature of a living cell. 
D)  imprinting of particular genes. 
A)  division of the chromosomes in half during the formation of eggs and sperm. 
B)  passing along of genes that are located close to one another on a chromosome. 
C)  conversion of genetic instructions into a feature of a living cell. 
D)  imprinting of particular genes.

Question 2

It is ______ that protect(s) a cell from apoptosis.

Accepted Answer

A)  cell adhesion molecules 
B)  inducing protein 
C)  neurotrophins 
D)  sonic hedgehog 
A)  cell adhesion molecules 
B)  inducing protein 
C)  neurotrophins 
D)  sonic hedgehog

Question 3

What is a "Hebb synapse," and how does this concept help us understand the segregation between input from each eye in the lateral geniculate nucleus of the adult animal?

Accepted Answer

Hebb is the scientist who first postulat

Question 4

Completion of myelination in the CNS is one possible reason that

Accepted Answer

A)  does not have observable behavioral effects, as the process is completed before birth in humans. 
B)  might account for the ability of children to learn to read and write. 
C)  coincides with the onset of puberty and children's ability to think in abstract terms. 
D)  might account for superior decision making in adults compared to teens. 
A)  does not have observable behavioral effects, as the process is completed before birth in humans. 
B)  might account for the ability of children to learn to read and write. 
C)  coincides with the onset of puberty and children's ability to think in abstract terms. 
D)  might account for superior decision making in adults compared to teens.

Question 5

Tom's father has hemophilia, but Tom does not have the disease. What are the chances that Tom's children will have hemophilia?

Accepted Answer

A)  Tom's sons will almost certainly have it because Tom will have inherited the recessive gene from this father. 
B)  Tom's daughters may be carriers, but his sons will not have the gene. 
C)  All of Tom's children will be carriers, but it will not be expressed until they have children. 
D)  None of Tom's children will be carriers or have the illness because his X gene came from his mother, who is not a carrier. 
A)  Tom's sons will almost certainly have it because Tom will have inherited the recessive gene from this father. 
B)  Tom's daughters may be carriers, but his sons will not have the gene. 
C)  All of Tom's children will be carriers, but it will not be expressed until they have children. 
D)  None of Tom's children will be carriers or have the illness because his X gene came from his mother, who is not a carrier.

Question 6

In which of the following conditions can the failure to follow a carefully prescribed diet result in intellectual disability?

Accepted Answer

A)  Williams syndrome 
B)  Alzheimer's disease 
C)  Fragile-X syndrome 
D)  PKU 
A)  Williams syndrome 
B)  Alzheimer's disease 
C)  Fragile-X syndrome 
D)  PKU

Question 7

How many chromosomes do human beings receive from each parent?

Accepted Answer

A)  23 
B)  46 
C)  21 
D)  42 
A)  23 
B)  46 
C)  21 
D)  42

Question 8

The interior of the neural tube will be retained in the adult brain as the

Accepted Answer

A)  forebrain. 
B)  ventricles and central canal of the spinal cord. 
C)  hindbrain. 
D)  corpus callosum. 
A)  forebrain. 
B)  ventricles and central canal of the spinal cord. 
C)  hindbrain. 
D)  corpus callosum.

Question 9

Apoptosis occurs when cell death genes are activated and ______ are expressed.

Accepted Answer

A)  apoptotic 
B)  blastocyst 
C)  caspases 
D)  degradation 
A)  apoptotic 
B)  blastocyst 
C)  caspases 
D)  degradation

Question 10

Nancy and Cliff had four children who did not have cystic fibrosis, but their fifth child was born with the disease. Cystic fibrosis is carried on a recessive gene. Given what you've learned in this chapter, how could this happen?

Accepted Answer

A)  It wasn't until the fifth child that both parents passed on the allele for this illness. 
B)  Recessive genes normally skip a generation, but after the parents had five children, the gene was expressed. 
C)  Their fifth child must have been a boy, which makes it more probable that he would have the illness. 
D)  Their fifth child must have been a girl, which makes it more probable that she would have the illness. 
A)  It wasn't until the fifth child that both parents passed on the allele for this illness. 
B)  Recessive genes normally skip a generation, but after the parents had five children, the gene was expressed. 
C)  Their fifth child must have been a boy, which makes it more probable that he would have the illness. 
D)  Their fifth child must have been a girl, which makes it more probable that she would have the illness.

Question 11

The leading known nongenetic cause of intellectual disability is

Accepted Answer

A)  alcohol use by pregnant women. 
B)  marijuana use by the partner of a pregnant woman. 
C)  prenatal exposure to lead-based paints. 
D)  environmental asbestos exposure during pregnancy. 
A)  alcohol use by pregnant women. 
B)  marijuana use by the partner of a pregnant woman. 
C)  prenatal exposure to lead-based paints. 
D)  environmental asbestos exposure during pregnancy.

Question 12

The human genome contains about ________ protein-building genes.

Accepted Answer

A)  9,500 
B)  19,000 
C)  100,000 
D)  2.5 million 
A)  9,500 
B)  19,000 
C)  100,000 
D)  2.5 million

Question 13

In human development, this layer develops into most of the internal organs.

Accepted Answer

A)  the endoderm 
B)  the mesoderm 
C)  the ectoderm 
D)  the blastoderm 
A)  the endoderm 
B)  the mesoderm 
C)  the ectoderm 
D)  the blastoderm

Question 14

Neurogenesis is now known to occur throughout life, though at different rates. Describe possible benefits of adult neurogenesis.

Accepted Answer

While neurogenesis in adulthoo

Question 15

Which of the following substances appears to enhance adult neurogenesis in rats?

Accepted Answer

A)  antidepressant medications 
B)  sonic hedgehog 
C)  alcohol 
D)  marijuana 
A)  antidepressant medications 
B)  sonic hedgehog 
C)  alcohol 
D)  marijuana

Question 16

At the peak of neurogenesis in humans, about how many new neural cells are produced per minute?

Accepted Answer

A)  10,000 
B)  75,000 
C)  250,000 
D)  500,000 
A)  10,000 
B)  75,000 
C)  250,000 
D)  500,000

Question 17

Brain weight begins to decline significantly in humans past the age of _________ years.

Accepted Answer

A)  20 
B)  45 
C)  65 
D)  80 
A)  20 
B)  45 
C)  65 
D)  80

Question 18

Extreme skewing in x-inactivation has been linked with which of the following characteristics in offspring?

Accepted Answer

A)  hemophilia 
B)  colorblindness 
C)  Alzheimer's disease 
D)  autoimmune diseases 
A)  hemophilia 
B)  colorblindness 
C)  Alzheimer's disease 
D)  autoimmune diseases

Question 19

About two-thirds of the cells traveling to the developing cortex follow radial glia, and the remaining one-third move in a horizontal direction instead, without using radial glia to guide them.

Accepted Answer

A) True 
 B)False

Question 20

How many chromosomes are typically present in human cells?

Accepted Answer

A)  20 pairs for a total of 40 chromosomes 
B)  21 pairs for a total of 42 chromosomes 
C)  22 pairs for a total of 44 chromosomes 
D)  23 pairs for a total of 46 chromosomes 
A)  20 pairs for a total of 40 chromosomes 
B)  21 pairs for a total of 42 chromosomes 
C)  22 pairs for a total of 44 chromosomes 
D)  23 pairs for a total of 46 chromosomes

Gene expression refers to the

It is ______ that protect(s) a cell from apoptosis.

What is a "Hebb synapse," and how does this concept help us understand the segregation between input from each eye in the lateral geniculate nucleus of the adult animal?

Completion of myelination in the CNS is one possible reason that

Tom's father has hemophilia, but Tom does not have the disease. What are the chances that Tom's children will have hemophilia?

In which of the following conditions can the failure to follow a carefully prescribed diet result in intellectual disability?

How many chromosomes do human beings receive from each parent?

The interior of the neural tube will be retained in the adult brain as the

Apoptosis occurs when cell death genes are activated and ______ are expressed.

Nancy and Cliff had four children who did not have cystic fibrosis, but their fifth child was born with the disease. Cystic fibrosis is carried on a recessive gene. Given what you've learned in this chapter, how could this happen?

The leading known nongenetic cause of intellectual disability is

The human genome contains about ________ protein-building genes.

In human development, this layer develops into most of the internal organs.

Neurogenesis is now known to occur throughout life, though at different rates. Describe possible benefits of adult neurogenesis.

Which of the following substances appears to enhance adult neurogenesis in rats?

At the peak of neurogenesis in humans, about how many new neural cells are produced per minute?

Brain weight begins to decline significantly in humans past the age of _________ years.

Extreme skewing in x-inactivation has been linked with which of the following characteristics in offspring?

About two-thirds of the cells traveling to the developing cortex follow radial glia, and the remaining one-third move in a horizontal direction instead, without using radial glia to guide them.

How many chromosomes are typically present in human cells?

What Is Behavioral Neuroscience?

Functional Neuroanatomy and the Evolution of the Nervous System

Neurophysiology: The Structure and Functions of the Cells of the Nervous System

Psychopharmacology

Vision

Nonvisual Sensation and Perception

Movement

Homeostasis, Motivation, and Reward

Sexual Behavior

Sleep and Waking

Learning and Memory

Cognition

Emotion, Aggression, and Stress

Neuropsychology

Psychopathology

Filters

Exam 5: Genetics and the Development of the Human Brain

Gene expression refers to the

It is ______ that protect(s) a cell from apoptosis.

What is a "Hebb synapse," and how does this concept help us understand the segregation between input from each eye in the lateral geniculate nucleus of the adult animal?

Completion of myelination in the CNS is one possible reason that

Tom's father has hemophilia, but Tom does not have the disease. What are the chances that Tom's children will have hemophilia?

In which of the following conditions can the failure to follow a carefully prescribed diet result in intellectual disability?

How many chromosomes do human beings receive from each parent?

The interior of the neural tube will be retained in the adult brain as the

Apoptosis occurs when cell death genes are activated and ______ are expressed.

Nancy and Cliff had four children who did not have cystic fibrosis, but their fifth child was born with the disease. Cystic fibrosis is carried on a recessive gene. Given what you've learned in this chapter, how could this happen?

The leading known nongenetic cause of intellectual disability is

The human genome contains about ________ protein-building genes.

In human development, this layer develops into most of the internal organs.

Neurogenesis is now known to occur throughout life, though at different rates. Describe possible benefits of adult neurogenesis.

Which of the following substances appears to enhance adult neurogenesis in rats?

At the peak of neurogenesis in humans, about how many new neural cells are produced per minute?

Brain weight begins to decline significantly in humans past the age of _________ years.

Extreme skewing in x-inactivation has been linked with which of the following characteristics in offspring?

About two-thirds of the cells traveling to the developing cortex follow radial glia, and the remaining one-third move in a horizontal direction instead, without using radial glia to guide them.

How many chromosomes are typically present in human cells?

What Is Behavioral Neuroscience?

Functional Neuroanatomy and the Evolution of the Nervous System

Neurophysiology: The Structure and Functions of the Cells of the Nervous System

Psychopharmacology

Vision

Nonvisual Sensation and Perception

Movement

Homeostasis, Motivation, and Reward

Sexual Behavior

Sleep and Waking

Learning and Memory

Cognition

Emotion, Aggression, and Stress

Neuropsychology

Psychopathology

Filters