Question 1

Researchers have estimated that ______ to ______ genes reside within the chromosomes and influence all genetic characteristics.

Accepted Answer

A)  10,000; 15,000 
B)  20,000; 25,000 
C)  50,000; 70,000 
D)  100,000; 200,000 
A)  10,000; 15,000 
B)  20,000; 25,000 
C)  50,000; 70,000 
D)  100,000; 200,000

Question 2

Which of the following diseases/disorders is an example of dominant-recessive inheritance?

Accepted Answer

A)  Prader-Willi syndrome 
B)  Down syndrome 
C)  Autism 
D)  Cystic fibrosis 
A)  Prader-Willi syndrome 
B)  Down syndrome 
C)  Autism 
D)  Cystic fibrosis

Question 3

In each human cell, a nucleus contains _____ chromosomes.

Accepted Answer

A)  12 
B)  12 matching pairs of 
C)  23 
D)  23 matching pairs of 
A)  12 
B)  12 matching pairs of 
C)  23 
D)  23 matching pairs of

Question 4

Child A has two large X-shaped chromosomes (XX), and Child B has one large X-shaped chromosome and one much smaller Y-shaped chromosome (XY). Child A is _____ and Child B is ____.

Accepted Answer

A)  female; male 
B)  male; female 
C)  an identical twin; a fraternal twin 
D)  a fraternal twin; an identical twin 
A)  female; male 
B)  male; female 
C)  an identical twin; a fraternal twin 
D)  a fraternal twin; an identical twin

Question 5

Consider the following scenario: Your best friend recently married. Your friend has a cousin with autism, and her husband's side of the family has a history of several genetic disorders, including Huntington's disease. The couple is worried about having children and they want to know if their potential offspring will be at risk for one of these disorders. They have an appointment to see a genetic counselor in two weeks. Explain to your friends what will happen during their visit.

Accepted Answer

Upon meeting your friends, the genetic c

Question 6

The majority of our genetic material is unique to humans.

Accepted Answer

A) True 
 B)False

Question 7

In Africa, children who inherit a single sickle cell allele are more resistant to malarial infection and more likely to survive. This demonstrates:

Accepted Answer

A)  that nature is more influential than nurture. 
B)  the epigenetic framework. 
C)  that mutations can sometimes be beneficial. 
D)  the purpose of behavioral genetics. 
A)  that nature is more influential than nurture. 
B)  the epigenetic framework. 
C)  that mutations can sometimes be beneficial. 
D)  the purpose of behavioral genetics.

Question 8

Which of the following traits reflect polygenic inheritance?

Accepted Answer

A)  sickle cell anemia 
B)  facial dimples 
C)  baldness 
D)  intelligence 
A)  sickle cell anemia 
B)  facial dimples 
C)  baldness 
D)  intelligence

Question 9

Michael and Matthew are identical twins. The boys share ____ percent of their genes.

Accepted Answer

A)  25 
B)  50 
C)  75 
D)  100 
A)  25 
B)  50 
C)  75 
D)  100

Question 10

The process of crossing-over, which occurs during meiosis, creates unique combinations of genes.

Accepted Answer

A) True 
 B)False

Question 11

Although all humans share the basic genome, each of us has a slightly different code, which makes us genetically distinct from other humans.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following traits is strongly canalized?

Accepted Answer

A)  Personality 
B)  Intelligence 
C)  Weight 
D)  Crawling 
A)  Personality 
B)  Intelligence 
C)  Weight 
D)  Crawling

Question 13

Dr. Rashaud recognizes that even traits that have a strong genetic component, such as height, are modified by environmental influences. Dr. Rashaud studies ______.

Accepted Answer

A)  behavior genetics 
B)  molecular biology 
C)  biochemistry 
D)  fetal medicine 
A)  behavior genetics 
B)  molecular biology 
C)  biochemistry 
D)  fetal medicine

Question 14

Levi has a fatal disease that causes the central nervous system to deteriorate, leading to significant declines in muscle coordination and cognition. He was unaware that he had the disease until his late-30s because he did not experience any symptoms in childhood, adolescence, or young adulthood. Levi has ______.

Accepted Answer

A)  cystic fibrosis 
B)  Marfan syndrome 
C)  Huntington's disease 
D)  PKU 
A)  cystic fibrosis 
B)  Marfan syndrome 
C)  Huntington's disease 
D)  PKU

Question 15

Most traits are a function of the interaction of multiple genes, known as _______.

Accepted Answer

A)  polygenic inheritance 
B)  incomplete dominance 
C)  dominant-recessive inheritance 
D)  genomic imprinting 
A)  polygenic inheritance 
B)  incomplete dominance 
C)  dominant-recessive inheritance 
D)  genomic imprinting

Question 16

The dynamic interplay between heredity and environment is known as ______.

Accepted Answer

A)  genetic studies 
B)  the epigenetic framework 
C)  an evocative gene-environment correlation 
D)  niche-picking 
A)  genetic studies 
B)  the epigenetic framework 
C)  an evocative gene-environment correlation 
D)  niche-picking

Question 17

Which of the following tests is the least invasive for detecting chromosomal abnormalities?

Accepted Answer

A)  ultrasound 
B)  amniocentesis 
C)  chorionic villus sampling 
D)  NIPT 
A)  ultrasound 
B)  amniocentesis 
C)  chorionic villus sampling 
D)  NIPT

Question 18

In the first stage of mitosis, each half of the DNA molecule regenerates and replaces its missing parts, leading to the formation of two distinct cells.

Accepted Answer

A) True 
 B)False

Question 19

Shannon and Frankie just found out that they are pregnant. They are interested in the odds of having twins. You can tell them that twins occur in about 1 out of every ____ births in the United States.

Accepted Answer

A)  10 
B)  20 
C)  30 
D)  40 
A)  10 
B)  20 
C)  30 
D)  40

Question 20

Kevin suffers from the most widely known chromosome disorder. Kevin has ____ syndrome.

Accepted Answer

A)  Prader-Willi 
B)  Klinefelter 
C)  Down 
D)  triple X 
A)  Prader-Willi 
B)  Klinefelter 
C)  Down 
D)  triple X

Researchers have estimated that to genes reside within the chromosomes and influence all genetic characteristics.

Which of the following diseases/disorders is an example of dominant-recessive inheritance?

In each human cell, a nucleus contains _____ chromosomes.

Child A has two large X-shaped chromosomes (XX), and Child B has one large X-shaped chromosome and one much smaller Y-shaped chromosome (XY). Child A is _ and Child B is .

The majority of our genetic material is unique to humans.

In Africa, children who inherit a single sickle cell allele are more resistant to malarial infection and more likely to survive. This demonstrates:

Which of the following traits reflect polygenic inheritance?

Michael and Matthew are identical twins. The boys share ____ percent of their genes.

The process of crossing-over, which occurs during meiosis, creates unique combinations of genes.

Although all humans share the basic genome, each of us has a slightly different code, which makes us genetically distinct from other humans.

Which of the following traits is strongly canalized?

Dr. Rashaud recognizes that even traits that have a strong genetic component, such as height, are modified by environmental influences. Dr. Rashaud studies ______.

Most traits are a function of the interaction of multiple genes, known as _______.

The dynamic interplay between heredity and environment is known as ______.

Which of the following tests is the least invasive for detecting chromosomal abnormalities?

In the first stage of mitosis, each half of the DNA molecule regenerates and replaces its missing parts, leading to the formation of two distinct cells.

Shannon and Frankie just found out that they are pregnant. They are interested in the odds of having twins. You can tell them that twins occur in about 1 out of every ____ births in the United States.

Kevin suffers from the most widely known chromosome disorder. Kevin has ____ syndrome.

Understanding Human Development: Approaches and Theories

The Prenatal Period, Birth, and the Newborn

Physical Development in Infancy and Toddlerhood

Cognitive Development in Infancy and Toddlerhood

Socioemotional Development in Infancy and Toddlerhood

Physical and Cognitive Development in Early Childhood

Socioemotional Development in Early Childhood

Physical and Cognitive Development in Middle Childhood

Socioemotional Development in Middle Childhood

Physical and Cognitive Development in Adolescence

Socioemotional Development in Adolescence

Physical and Cognitive Development in Early Adulthood

Socioemotional Development in Early Adulthood

Physical and Cognitive Development in Middle Adulthood

Socioemotional Development in Middle Adulthood

Physical and Cognitive Development in Late Adulthood

Socioemotional Development in Late Adulthood and the End of Life

Filters

Exam 2: Biological and Environmental Foundations

Researchers have estimated that ______ to ______ genes reside within the chromosomes and influence all genetic characteristics.

Which of the following diseases/disorders is an example of dominant-recessive inheritance?

In each human cell, a nucleus contains _____ chromosomes.

Child A has two large X-shaped chromosomes (XX), and Child B has one large X-shaped chromosome and one much smaller Y-shaped chromosome (XY). Child A is _____ and Child B is ____.

The majority of our genetic material is unique to humans.

In Africa, children who inherit a single sickle cell allele are more resistant to malarial infection and more likely to survive. This demonstrates:

Which of the following traits reflect polygenic inheritance?

Michael and Matthew are identical twins. The boys share ____ percent of their genes.

The process of crossing-over, which occurs during meiosis, creates unique combinations of genes.

Although all humans share the basic genome, each of us has a slightly different code, which makes us genetically distinct from other humans.

Which of the following traits is strongly canalized?

Dr. Rashaud recognizes that even traits that have a strong genetic component, such as height, are modified by environmental influences. Dr. Rashaud studies ______.

Most traits are a function of the interaction of multiple genes, known as _______.

The dynamic interplay between heredity and environment is known as ______.

Which of the following tests is the least invasive for detecting chromosomal abnormalities?

In the first stage of mitosis, each half of the DNA molecule regenerates and replaces its missing parts, leading to the formation of two distinct cells.

Shannon and Frankie just found out that they are pregnant. They are interested in the odds of having twins. You can tell them that twins occur in about 1 out of every ____ births in the United States.

Kevin suffers from the most widely known chromosome disorder. Kevin has ____ syndrome.

Understanding Human Development: Approaches and Theories

The Prenatal Period, Birth, and the Newborn

Physical Development in Infancy and Toddlerhood

Cognitive Development in Infancy and Toddlerhood

Socioemotional Development in Infancy and Toddlerhood

Physical and Cognitive Development in Early Childhood

Socioemotional Development in Early Childhood

Physical and Cognitive Development in Middle Childhood

Socioemotional Development in Middle Childhood

Physical and Cognitive Development in Adolescence

Socioemotional Development in Adolescence

Physical and Cognitive Development in Early Adulthood

Socioemotional Development in Early Adulthood

Physical and Cognitive Development in Middle Adulthood

Socioemotional Development in Middle Adulthood

Physical and Cognitive Development in Late Adulthood

Socioemotional Development in Late Adulthood and the End of Life

Filters

Researchers have estimated that to genes reside within the chromosomes and influence all genetic characteristics.

Child A has two large X-shaped chromosomes (XX), and Child B has one large X-shaped chromosome and one much smaller Y-shaped chromosome (XY). Child A is _ and Child B is .