Question 1

Chorionic villus sampling works because the chorionic villus

Accepted Answer

A)  eventually forms the zygote, so the chromosomes and genetic codes are the same as those in the fetus will be. 
B)  originates from the zygote, so the chromosomes and genetic codes are the same as those in the fetus. 
C)  allows the mother and baby to share the same blood supply. 
D)  contains all of the developing fetus's DNA and chromosomes. 
A)  eventually forms the zygote, so the chromosomes and genetic codes are the same as those in the fetus will be. 
B)  originates from the zygote, so the chromosomes and genetic codes are the same as those in the fetus. 
C)  allows the mother and baby to share the same blood supply. 
D)  contains all of the developing fetus's DNA and chromosomes.

Question 2

Describe "junk DNA" and how ongoing genetic studies may help reveal how it functions in important ways.

Accepted Answer

Less than 2% of human DNA has an identif

Question 3

Chromosome abnormalities can cause a number of serious genetic defects in children. One such defect is Down syndrome. Define Down syndrome and outline what causes this disorder. Then, discuss the physical and intellectual effects that this genetic disorder has on the developing child. Finally, describe the number one possible risk factor for giving birth to a Down syndrome child.

Accepted Answer

Down syndrome, also called trisomy 21, o

Question 4

Jack and Jill are siblings being raised in a very active household. The family attends many sporting events and participates in a wide range of athletic activities. Which of the following would be the BEST example of a nonshared environment?

Accepted Answer

A)  When they were toddlers, the family went on a five-day backpacking trip to Yellowstone. 
B)  Their parents enforce a strict, daily regimen of at least thirty minutes of vigorous exercise. 
C)  Their financial status allows the family to travel to upscale events, such as the Indianapolis 500 and the running of the bulls in Pamplona. 
D)  Jack, a Special Olympian with Down syndrome, needs certain accommodations to participate in family sporting activities. 
A)  When they were toddlers, the family went on a five-day backpacking trip to Yellowstone. 
B)  Their parents enforce a strict, daily regimen of at least thirty minutes of vigorous exercise. 
C)  Their financial status allows the family to travel to upscale events, such as the Indianapolis 500 and the running of the bulls in Pamplona. 
D)  Jack, a Special Olympian with Down syndrome, needs certain accommodations to participate in family sporting activities.

Question 5

An individual whose 23rd pair of chromosomes is XY

Accepted Answer

A)  is a genetic male. 
B)  has Down syndrome. 
C)  has Turner syndrome. 
D)  has Klinefelter syndrome. 
A)  is a genetic male. 
B)  has Down syndrome. 
C)  has Turner syndrome. 
D)  has Klinefelter syndrome.

Question 6

All of the following are examples of alternative techniques for conception EXCEPT

Accepted Answer

A)  in vitro fertilization. 
B)  cryopreservation. 
C)  nucleotide mapping. 
D)  surrogacy. 
A)  in vitro fertilization. 
B)  cryopreservation. 
C)  nucleotide mapping. 
D)  surrogacy.

Question 7

Amniocentesis can be conducted after the 8th week of pregnancy.

Accepted Answer

A) True 
 B)False

Question 8

Traits with high heritability estimates provide support for the concept of

Accepted Answer

A)  canalization. 
B)  genetic determinism. 
C)  X-linked traits. 
D)  both A and B 
A)  canalization. 
B)  genetic determinism. 
C)  X-linked traits. 
D)  both A and B

Question 9

Sally is participating in an adoption study. Sally was adopted when she was seven months old. Her biological family could be characterized as Caucasian, middle-class, from an urban setting in the northeastern United States. She was placed with an adoptive family that could be characterized as being Caucasian, middle-class, from an urban setting in the northeastern United States. Sally's adoption presents what potential problem for the researchers of the adoption study?

Accepted Answer

A)  heritability 
B)  probabilistic epigenesis 
C)  selective placement 
D)  equal environments 
A)  heritability 
B)  probabilistic epigenesis 
C)  selective placement 
D)  equal environments

Question 10

The "stairs" of DNA molecules are made of

Accepted Answer

A)  nucleotide bases. 
B)  adenine, thymine, guanine, and cytosine. 
C)  both A and B. 
D)  neither A nor B. 
A)  nucleotide bases. 
B)  adenine, thymine, guanine, and cytosine. 
C)  both A and B. 
D)  neither A nor B.

Question 11

Several studies have shown that heritability estimates for some cognitive skills ____________ with age.

Accepted Answer

A)  decrease 
B)  are not correlated with 
C)  increase 
D)  first increase, and then decrease 
A)  decrease 
B)  are not correlated with 
C)  increase 
D)  first increase, and then decrease

Question 12

The G x E interaction refers to the ways in which

Accepted Answer

A)  nature combines with nurture to produce a given outcome. 
B)  genetics and education work together to produce intelligence in a child. 
C)  a given outcome is multiplied by an expected outcome in a child's behavior. 
D)  the range of possible phenotypes exist for a particular genotype. 
A)  nature combines with nurture to produce a given outcome. 
B)  genetics and education work together to produce intelligence in a child. 
C)  a given outcome is multiplied by an expected outcome in a child's behavior. 
D)  the range of possible phenotypes exist for a particular genotype.

Question 13

A type of gene that operates in pairs across matched chromosomes is called

Accepted Answer

A)  a chromosome. 
B)  a genome. 
C)  an adenine. 
D)  an allele. 
A)  a chromosome. 
B)  a genome. 
C)  an adenine. 
D)  an allele.

Question 14

________ is the type of cell division that occurs during the formation of gametes.

Accepted Answer

The answer of ________ is the type of cell division...

Question 15

Which of the following statements concerning Down syndrome is FALSE?

Accepted Answer

A)  Down syndrome is also referred to as Trisomy 21. 
B)  In Down syndrome, there is a defective gene on the X chromosome. 
C)  Down syndrome is the single most common genetic cause of mental retardation. 
D)  In Down syndrome, babies are born with an extra 21st chromosome. 
A)  Down syndrome is also referred to as Trisomy 21. 
B)  In Down syndrome, there is a defective gene on the X chromosome. 
C)  Down syndrome is the single most common genetic cause of mental retardation. 
D)  In Down syndrome, babies are born with an extra 21st chromosome.

Question 16

X-linked recessive traits are

Accepted Answer

A)  more common among females than males. 
B)  more common among males than females. 
C)  equally common among females and males. 
D)  none of the above; there is no data correlating X-linked recessive traits and sex. 
A)  more common among females than males. 
B)  more common among males than females. 
C)  equally common among females and males. 
D)  none of the above; there is no data correlating X-linked recessive traits and sex.

Question 17

There are approximately _____________ genes aligned along the set of 46 chromosomes in each human cell.

Accepted Answer

A)  20,000 to 30,000 
B)  200 to 300 
C)  20 to 30 
D)  2 million to 3 million 
A)  20,000 to 30,000 
B)  200 to 300 
C)  20 to 30 
D)  2 million to 3 million

Question 18

Which of the following statements is true about any corresponding pair of alleles?

Accepted Answer

A)  The two alleles inherited are always the same. 
B)  The two alleles inherited are always different. 
C)  The two alleles inherited can be either the same or different. 
D)  The two alleles inherited are never the same. 
A)  The two alleles inherited are always the same. 
B)  The two alleles inherited are always different. 
C)  The two alleles inherited can be either the same or different. 
D)  The two alleles inherited are never the same.

Question 19

The ________ is a multinational effort by governments and scientists to map the 3 billion pairs of nucleotide bases and genes in humans.

Accepted Answer

Human Geno

Question 20

Imagine that a researcher measures a specific psychological characteristic (SPC) in pairs of siblings who are being reared together. She finds a correlation of .15 between pairs of adopted siblings who are biologically unrelated, a correlation of .63 for fraternal twins, and a correlation of .92 for identical twins. These results suggest that

Accepted Answer

A)  compared to the impact of the environment, genetics contributes relatively little to variability in the SPC. 
B)  the shared environment contributes greatly to the variability in the SPC only among the identical twins. 
C)  both the environment and genetics contribute substantially to the variability in the SPC. 
D)  relative to the influence of genetics, the environment contributes relatively little to variability in the SPC. 
A)  compared to the impact of the environment, genetics contributes relatively little to variability in the SPC. 
B)  the shared environment contributes greatly to the variability in the SPC only among the identical twins. 
C)  both the environment and genetics contribute substantially to the variability in the SPC. 
D)  relative to the influence of genetics, the environment contributes relatively little to variability in the SPC.

Chorionic villus sampling works because the chorionic villus

Describe "junk DNA" and how ongoing genetic studies may help reveal how it functions in important ways.

Jack and Jill are siblings being raised in a very active household. The family attends many sporting events and participates in a wide range of athletic activities. Which of the following would be the BEST example of a nonshared environment?

An individual whose 23rd pair of chromosomes is XY

All of the following are examples of alternative techniques for conception EXCEPT

Amniocentesis can be conducted after the 8th week of pregnancy.

Traits with high heritability estimates provide support for the concept of

The "stairs" of DNA molecules are made of

Several studies have shown that heritability estimates for some cognitive skills ____________ with age.

The G x E interaction refers to the ways in which

A type of gene that operates in pairs across matched chromosomes is called

________ is the type of cell division that occurs during the formation of gametes.

Which of the following statements concerning Down syndrome is FALSE?

X-linked recessive traits are

There are approximately _____________ genes aligned along the set of 46 chromosomes in each human cell.

Which of the following statements is true about any corresponding pair of alleles?

The ________ is a multinational effort by governments and scientists to map the 3 billion pairs of nucleotide bases and genes in humans.

Exploring Child Development

Prenatal Development and Birth

Physical Development in Infants and Toddlers

Socioemotional Development in Infants and Toddlers

Physical Development in Early Childhood

Cognitive Development in Early Childhood

Socioemotional Development in Early Childhood

Physical Development in Middle Childhood

Cognitive Development in Middle Childhood

Socioemotional Development in Middle Childhood

Physical Development in Adolescence

Cognitive Development in Adolescence

Socioemotional Development in Adolescenc

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Exam 2: Heredity and the Environment

Chorionic villus sampling works because the chorionic villus

Describe "junk DNA" and how ongoing genetic studies may help reveal how it functions in important ways.

Jack and Jill are siblings being raised in a very active household. The family attends many sporting events and participates in a wide range of athletic activities. Which of the following would be the BEST example of a nonshared environment?

An individual whose 23rd pair of chromosomes is XY

All of the following are examples of alternative techniques for conception EXCEPT

Amniocentesis can be conducted after the 8th week of pregnancy.

Traits with high heritability estimates provide support for the concept of

The "stairs" of DNA molecules are made of

Several studies have shown that heritability estimates for some cognitive skills ____________ with age.

The G x E interaction refers to the ways in which

A type of gene that operates in pairs across matched chromosomes is called

________ is the type of cell division that occurs during the formation of gametes.

Which of the following statements concerning Down syndrome is FALSE?

X-linked recessive traits are

There are approximately _____________ genes aligned along the set of 46 chromosomes in each human cell.

Which of the following statements is true about any corresponding pair of alleles?

The ________ is a multinational effort by governments and scientists to map the 3 billion pairs of nucleotide bases and genes in humans.

Exploring Child Development

Prenatal Development and Birth

Physical Development in Infants and Toddlers

Socioemotional Development in Infants and Toddlers

Physical Development in Early Childhood

Cognitive Development in Early Childhood

Socioemotional Development in Early Childhood

Physical Development in Middle Childhood

Cognitive Development in Middle Childhood

Socioemotional Development in Middle Childhood

Physical Development in Adolescence

Cognitive Development in Adolescence

Socioemotional Development in Adolescenc

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