Question 1

Growth cones are defined as

Accepted Answer

A)  the influences of neighboring cells on differentiation. 
B)  attractant chemicals that guide axon growth. 
C)  death genes that are expressed when a cell "decides" to die. 
D)  swollen ends of axons and dendrites from which extensions grow. 
A)  the influences of neighboring cells on differentiation. 
B)  attractant chemicals that guide axon growth. 
C)  death genes that are expressed when a cell "decides" to die. 
D)  swollen ends of axons and dendrites from which extensions grow.

Question 2

Which of the following is the best definition of a gene?

Accepted Answer

A)  an individual's set of observable characteristics 
B)  a segment of DNA that contains instructions for producing a protein 
C)  a molecule that encodes genetic information 
D)  a sequence of three bases on the DNA molecule that encode one of twenty amino acids 
A)  an individual's set of observable characteristics 
B)  a segment of DNA that contains instructions for producing a protein 
C)  a molecule that encodes genetic information 
D)  a sequence of three bases on the DNA molecule that encode one of twenty amino acids

Question 3

Most cases of colorblindness result from abnormal recessive genes located on the X chromosome that are not duplicated on the Y chromosome.Which of the following statements accurately predicts the outcome for the children of a father with typical genes and a mother with abnormal genes?

Accepted Answer

A)  Half of the couple's daughters,but none of their sons,are likely to be colorblind. 
B)  Half of the couple's sons,but none of their daughters,are likely to be colorblind. 
C)  None of the couple's children are likely to be colorblind. 
D)  All of the couple's children are likely to be colorblind. 
A)  Half of the couple's daughters,but none of their sons,are likely to be colorblind. 
B)  Half of the couple's sons,but none of their daughters,are likely to be colorblind. 
C)  None of the couple's children are likely to be colorblind. 
D)  All of the couple's children are likely to be colorblind.

Question 4

Plaques on axon terminals and within blood vessels serving the brain may result from

Accepted Answer

A)  Alzheimer's disease. 
B)  phenylketonuria (PKU). 
C)  fetal alcohol syndrome. 
D)  fragile-X syndrome. 
A)  Alzheimer's disease. 
B)  phenylketonuria (PKU). 
C)  fetal alcohol syndrome. 
D)  fragile-X syndrome.

Question 5

The completion of myelination

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 6

Which of the following is the best example of a genotype?

Accepted Answer

A)  Nicole has green eyes. 
B)  Justin is taller than his parents. 
C)  Lauren has the same hair color as her fraternal twin sister. 
D)  Anthony has two copies of the APOE2 allele. 
A)  Nicole has green eyes. 
B)  Justin is taller than his parents. 
C)  Lauren has the same hair color as her fraternal twin sister. 
D)  Anthony has two copies of the APOE2 allele.

Question 7

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

The answer of What is a "Hebb synapse," and how...

Question 8

The proteome is defined as

Accepted Answer

A)  the set of proteins encoded and expressed by the genome. 
B)  the set of proteins encoded by an individual's genotype. 
C)  the rate of gene expression. 
D)  a species' profile of mitochondrial DNA. 
A)  the set of proteins encoded and expressed by the genome. 
B)  the set of proteins encoded by an individual's genotype. 
C)  the rate of gene expression. 
D)  a species' profile of mitochondrial DNA.

Question 9

For the first two weeks of a human pregnancy,the developing organism is referred to as a(n)

Accepted Answer

A)  zygote. 
B)  embryo. 
C)  blastocyst. 
D)  fetus. 
A)  zygote. 
B)  embryo. 
C)  blastocyst. 
D)  fetus.

Question 10

The passing along of genes that are physically close to one another on the same chromosome is known as

Accepted Answer

A)  linkage. 
B)  crossing over. 
C)  meiosis. 
D)  gene expression. 
A)  linkage. 
B)  crossing over. 
C)  meiosis. 
D)  gene expression.

Question 11

Myelination occurs in

Accepted Answer

A)  motor systems before it occurs in sensory systems. 
B)  sensory systems before it occurs in motor systems. 
C)  interneurons before either motor or sensory systems. 
D)  interneurons,sensory systems,and motor systems all at the same time. 
A)  motor systems before it occurs in sensory systems. 
B)  sensory systems before it occurs in motor systems. 
C)  interneurons before either motor or sensory systems. 
D)  interneurons,sensory systems,and motor systems all at the same time.

Question 12

Which of the following accurately describes the attraction of bases between strands of DNA?

Accepted Answer

A)  A pairs with T,and C pairs with G 
B)  A pairs with C,and T pairs with G 
C)  A pairs with G,and T pairs with C 
D)  A pairs with U,and T pairs with G 
A)  A pairs with T,and C pairs with G 
B)  A pairs with C,and T pairs with G 
C)  A pairs with G,and T pairs with C 
D)  A pairs with U,and T pairs with G

Question 13

Critical periods may end as a response to

Accepted Answer

A)  the end of axon growth in a particular part of the brain. 
B)  the presence of caspases. 
C)  anterograde degeneration. 
D)  an absence of cell adhesion molecules. 
A)  the end of axon growth in a particular part of the brain. 
B)  the presence of caspases. 
C)  anterograde degeneration. 
D)  an absence of cell adhesion molecules.

Question 14

A single human can produce eggs or sperm with more than _________ different combinations of his or her chromosomes.

Accepted Answer

A)  800 
B)  8,000 
C)  800,000 
D)  8,000,000 
A)  800 
B)  8,000 
C)  800,000 
D)  8,000,000

Question 15

New neurons in a mature animal probably migrate to

Accepted Answer

A)  all areas of the brain. 
B)  the olfactory bulbs only. 
C)  the visual cortex. 
D)  the hippocampus and association cortex. 
A)  all areas of the brain. 
B)  the olfactory bulbs only. 
C)  the visual cortex. 
D)  the hippocampus and association cortex.

Question 16

In cases of Alzheimer's disease,progressive degeneration of the brain may occur due to

Accepted Answer

A)  anterograde degeneration. 
B)  retrograde degeneration. 
C)  synaptic pruning. 
D)  transneuronal degeneration. 
A)  anterograde degeneration. 
B)  retrograde degeneration. 
C)  synaptic pruning. 
D)  transneuronal degeneration.

Question 17

Fragile-X syndrome usually occurs as a result of

Accepted Answer

A)  paternal age. 
B)  maternal age. 
C)  multiple codon repeats on the X chromosome. 
D)  the inability to metabolize phenylalanine. 
A)  paternal age. 
B)  maternal age. 
C)  multiple codon repeats on the X chromosome. 
D)  the inability to metabolize phenylalanine.

Question 18

Memantine improves the cognition of some patients with Alzheimer's disease by

Accepted Answer

A)  blocking glutamate at the NMDA receptor. 
B)  inhibiting acetylcholinesterase (ACh
E) . 
C)  breaking down abnormal amyloid molecules. 
D)  promoting greater synthesis of acetylcholine (ACh). 
A)  blocking glutamate at the NMDA receptor. 
B)  inhibiting acetylcholinesterase (ACh
E) . 
C)  breaking down abnormal amyloid molecules. 
D)  promoting greater synthesis of acetylcholine (ACh).

Question 19

DNA is located in

Accepted Answer

A)  chromosomes only. 
B)  mitochondria only. 
C)  chromosomes and in mitochondria. 
D)  neither chromosomes nor mitochondria. 
A)  chromosomes only. 
B)  mitochondria only. 
C)  chromosomes and in mitochondria. 
D)  neither chromosomes nor mitochondria.

Question 20

When an axon is damaged,anterograde degeneration may occur

Accepted Answer

A)  in the part of the axon attached to the cell body. 
B)  in neurons that synapse onto the damaged cell. 
C)  in the cell body attached to the damaged axon. 
D)  between the break and the axon's terminal. 
A)  in the part of the axon attached to the cell body. 
B)  in neurons that synapse onto the damaged cell. 
C)  in the cell body attached to the damaged axon. 
D)  between the break and the axon's terminal.

Growth cones are defined as

Which of the following is the best definition of a gene?

Most cases of colorblindness result from abnormal recessive genes located on the X chromosome that are not duplicated on the Y chromosome.Which of the following statements accurately predicts the outcome for the children of a father with typical genes and a mother with abnormal genes?

Plaques on axon terminals and within blood vessels serving the brain may result from

The completion of myelination

Which of the following is the best example of a genotype?

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?

The proteome is defined as

For the first two weeks of a human pregnancy,the developing organism is referred to as a(n)

The passing along of genes that are physically close to one another on the same chromosome is known as

Myelination occurs in

Which of the following accurately describes the attraction of bases between strands of DNA?

Critical periods may end as a response to

A single human can produce eggs or sperm with more than _________ different combinations of his or her chromosomes.

New neurons in a mature animal probably migrate to

In cases of Alzheimer's disease,progressive degeneration of the brain may occur due to

Fragile-X syndrome usually occurs as a result of

Memantine improves the cognition of some patients with Alzheimer's disease by

DNA is located in

When an axon is damaged,anterograde degeneration may occur

Introducing Biological Psychology

The Anatomy and Evolution of the Nervous System

Cells of the Nervous System

Psychopharmacology

Vision

Nonvisual Sensation and Perception

Movement

Temperature Regulation,thirst,and Hunger

Sexual Behavior

Sleep and Waking

Learning and Memory

Lateralization, language, and Intelligence

Emotion, reward, aggression, and Stress

Neurological Disorders

Psychological Disorders

Filters

Exam 5: Genetics and the Development of the Human Brain

Growth cones are defined as

Which of the following is the best definition of a gene?

Most cases of colorblindness result from abnormal recessive genes located on the X chromosome that are not duplicated on the Y chromosome.Which of the following statements accurately predicts the outcome for the children of a father with typical genes and a mother with abnormal genes?

Plaques on axon terminals and within blood vessels serving the brain may result from

The completion of myelination

Which of the following is the best example of a genotype?

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?

The proteome is defined as

For the first two weeks of a human pregnancy,the developing organism is referred to as a(n)

The passing along of genes that are physically close to one another on the same chromosome is known as

Myelination occurs in

Which of the following accurately describes the attraction of bases between strands of DNA?

Critical periods may end as a response to

A single human can produce eggs or sperm with more than _________ different combinations of his or her chromosomes.

New neurons in a mature animal probably migrate to

In cases of Alzheimer's disease,progressive degeneration of the brain may occur due to

Fragile-X syndrome usually occurs as a result of

Memantine improves the cognition of some patients with Alzheimer's disease by

DNA is located in

When an axon is damaged,anterograde degeneration may occur

Introducing Biological Psychology

The Anatomy and Evolution of the Nervous System

Cells of the Nervous System

Psychopharmacology

Vision

Nonvisual Sensation and Perception

Movement

Temperature Regulation,thirst,and Hunger

Sexual Behavior

Sleep and Waking

Learning and Memory

Lateralization, language, and Intelligence

Emotion, reward, aggression, and Stress

Neurological Disorders

Psychological Disorders

Filters