Question 1

Who provides the best example of niche-picking?

Accepted Answer

A) Musically-talented Mosi who chooses to spend his free time listening to music and practising his guitar. 
B) Natural singer Vanessa who is often asked to sing by her family and friends. 
C) Tone-deaf Toneesha whose choir director asks her to simply mouth the words rather than sing during performances. 
D) Piano prodigy Philip who not only inherited musical talent from his symphony-playing parents but was encouraged by his parents to begin playing a musical instrument at an early age. 
A) Musically-talented Mosi who chooses to spend his free time listening to music and practising his guitar. 
B) Natural singer Vanessa who is often asked to sing by her family and friends. 
C) Tone-deaf Toneesha whose choir director asks her to simply mouth the words rather than sing during performances. 
D) Piano prodigy Philip who not only inherited musical talent from his symphony-playing parents but was encouraged by his parents to begin playing a musical instrument at an early age. A

Question 2

The continuous interplay between genes and multiple levels of the environment (from cells to culture) that drives development is known as

Accepted Answer

A) methylation. 
B) reaction range. 
C) epigenesis. 
D) polygenesis. 
A) methylation. 
B) reaction range. 
C) epigenesis. 
D) polygenesis. C

Question 3

Tina has XXX syndrome.Which of the following characteristics is she likely to have?

Accepted Answer

A) tall stature,difficulty with spatial relations 
B) short stature,difficulty with spatial relations 
C) tall stature,below-normal intelligence 
D) normal height,delayed motor and language development 
A) tall stature,difficulty with spatial relations 
B) short stature,difficulty with spatial relations 
C) tall stature,below-normal intelligence 
D) normal height,delayed motor and language development D

Question 4

Lilly and Kyle have been unable to conceive a baby through sexual intercourse,so they have decided to try in vitro fertilization.Which of the following is true about their situation?

Accepted Answer

A) Lilly and Kyle's attempts to have a baby through in vitro fertilization are very likely to be successful. 
B) Lilly and Kyle are very likely to have to use a surrogate mother to carry the child. 
C) Lilly and Kyle will have to use donor sperm. 
D) If Lilly does become pregnant,she will have a higher than average chance of having twins or triplets. 
A) Lilly and Kyle's attempts to have a baby through in vitro fertilization are very likely to be successful. 
B) Lilly and Kyle are very likely to have to use a surrogate mother to carry the child. 
C) Lilly and Kyle will have to use donor sperm. 
D) If Lilly does become pregnant,she will have a higher than average chance of having twins or triplets.

Question 5

Why are African Canadians more likely to inherit sickle-cell disease?

Accepted Answer

African Canadians are more likely to inh

Question 6

In vitro fertilization is a procedure in which

Accepted Answer

A) an egg is fertilized by sperm in a laboratory dish and then placed in the mother's uterus. 
B) sperm is injected into the mother's uterus to fertilize her egg. 
C) a fertilized egg is extracted from one woman's uterus and then placed in another woman's uterus. 
D) a surrogate mother is used to carry another couple's developing fetus. 
A) an egg is fertilized by sperm in a laboratory dish and then placed in the mother's uterus. 
B) sperm is injected into the mother's uterus to fertilize her egg. 
C) a fertilized egg is extracted from one woman's uterus and then placed in another woman's uterus. 
D) a surrogate mother is used to carry another couple's developing fetus.

Question 7

Leslie is homozygous for hair type.Therefore,she must have

Accepted Answer

A) curly hair. 
B) straight hair. 
C) one allele for curly hair and one allele for straight hair. 
D) either two alleles for curly hair or two alleles for straight hair. 
A) curly hair. 
B) straight hair. 
C) one allele for curly hair and one allele for straight hair. 
D) either two alleles for curly hair or two alleles for straight hair.

Question 8

Huntington's disease is caused by a recessive allele found on chromosome 4.

Accepted Answer

A) True 
 B)False

Question 9

Niche-picking refers to

Accepted Answer

A) one genotype leading to a range of phenotypes,depending on the environment. 
B) children deliberately seeking environments that fit their heredity. 
C) children's heredity eliciting different reactions from the environment. 
D) parents both passing on their genes to their children and providing an environment for their children. 
A) one genotype leading to a range of phenotypes,depending on the environment. 
B) children deliberately seeking environments that fit their heredity. 
C) children's heredity eliciting different reactions from the environment. 
D) parents both passing on their genes to their children and providing an environment for their children.

Question 10

Most behavioural and psychological traits are polygenic traits.

Accepted Answer

A) True 
 B)False

Question 11

You and a friend were talking about the role of heredity and environment and your friend said,"Heredity is destiny.When someone inherits genes for bad diseases there is nothing about the environment that can change the negative effects." What can you tell your friend about the interaction of heredity and environment in cases such as those involving individuals with phenylketonuria?

Accepted Answer

A good answer will be similar to the fol

Question 12

A child's 46 chromosomes include about ___________ genes.

Accepted Answer

A) 10 000 
B) 50 000 
C) 25 000 
D) 100 
A) 10 000 
B) 50 000 
C) 25 000 
D) 100

Question 13

Mindy and Mandy are dizygotic twins.Therefore,they

Accepted Answer

A) came from two separate eggs. 
B) have the same genes. 
C) have no shared genes. 
D) cannot be used in a twin study. 
A) came from two separate eggs. 
B) have the same genes. 
C) have no shared genes. 
D) cannot be used in a twin study.

Question 14

The first ________ pairs of chromosomes are called autosomes.

Accepted Answer

A) 22 
B) 23 
C) 44 
D) 46 
A) 22 
B) 23 
C) 44 
D) 46

Question 15

Gina has a genotype for average sociability.If she is in an environment where sociability is discouraged,she is likely to be below average in sociability.If she is in an environment where sociability is encouraged,she may be above average in sociability.The fact that Gina's genotype can lead to different phenotypes depending on the environment is a phenomenon referred to as

Accepted Answer

A) niche-picking. 
B) an active gene-environment relation. 
C) an evocative gene-environment relation. 
D) a reaction range. 
A) niche-picking. 
B) an active gene-environment relation. 
C) an evocative gene-environment relation. 
D) a reaction range.

Question 16

Jolie has sickle-cell trait,a temporary,relatively mild form of sickle-cell anemia,but does not have full-blown sickle-cell anemia.Her condition is most likely the result of

Accepted Answer

A) incomplete dominance between one allele for normal blood cells and one for sickle-shaped cells. 
B) two recessive alleles for sickle-shaped cells. 
C) a dominant sickle-shaped cell allele and a recessive normal blood cell allele. 
D) two dominant alleles for normal blood cells. 
A) incomplete dominance between one allele for normal blood cells and one for sickle-shaped cells. 
B) two recessive alleles for sickle-shaped cells. 
C) a dominant sickle-shaped cell allele and a recessive normal blood cell allele. 
D) two dominant alleles for normal blood cells.

Question 17

Twin studies compare children with their biological and adoptive parents.

Accepted Answer

A) True 
 B)False

Question 18

Your friends Shania and Ricky are expecting a baby.Both Shania and Ricky are farsighted and have cheek dimples.Shania and Ricky have said that they hope that their baby won't need to wear glasses or have cheek dimples because they both hate their glasses and dimples.What can you tell them about genetic inheritance and the likelihood that they will get their wish?

Accepted Answer

A good answer will be similar to the fol

Question 19

Sex chromosomes

Accepted Answer

A) do not come in pairs. 
B) come in pairs of chromosomes that are about the same size. 
C) determine the sex of the child. 
D) are the first 22 pairs of chromosomes. 
A) do not come in pairs. 
B) come in pairs of chromosomes that are about the same size. 
C) determine the sex of the child. 
D) are the first 22 pairs of chromosomes.

Question 20

If one monozygotic twin is clinically depressed,the other twin has a 25 percent chance of becoming depressed.

Accepted Answer

A) True 
 B)False

Who provides the best example of niche-picking?

The continuous interplay between genes and multiple levels of the environment (from cells to culture) that drives development is known as

Tina has XXX syndrome.Which of the following characteristics is she likely to have?

Lilly and Kyle have been unable to conceive a baby through sexual intercourse,so they have decided to try in vitro fertilization.Which of the following is true about their situation?

Why are African Canadians more likely to inherit sickle-cell disease?

In vitro fertilization is a procedure in which

Leslie is homozygous for hair type.Therefore,she must have

Huntington's disease is caused by a recessive allele found on chromosome 4.

Niche-picking refers to

Most behavioural and psychological traits are polygenic traits.

A child's 46 chromosomes include about ___________ genes.

Mindy and Mandy are dizygotic twins.Therefore,they

The first ________ pairs of chromosomes are called autosomes.

Jolie has sickle-cell trait,a temporary,relatively mild form of sickle-cell anemia,but does not have full-blown sickle-cell anemia.Her condition is most likely the result of

Twin studies compare children with their biological and adoptive parents.

Sex chromosomes

If one monozygotic twin is clinically depressed,the other twin has a 25 percent chance of becoming depressed.

The Science of Child Development

Prenatal Development, Birth, and the Newborn

Growth and Health

Perceptual and Motor Development

Theories of Cognitive Development

Cognitive Processes and Academic Skills

Intelligence and Individual Differences in Cognition

Language and Communication

Emotional Development

Understanding Self and Others

Moral Understanding and Behaviour

Gender and Development

Social Influences

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Exam 2: Genetic Bases of Child Development

Who provides the best example of niche-picking?

The continuous interplay between genes and multiple levels of the environment (from cells to culture) that drives development is known as

Tina has XXX syndrome.Which of the following characteristics is she likely to have?

Lilly and Kyle have been unable to conceive a baby through sexual intercourse,so they have decided to try in vitro fertilization.Which of the following is true about their situation?

Why are African Canadians more likely to inherit sickle-cell disease?

In vitro fertilization is a procedure in which

Leslie is homozygous for hair type.Therefore,she must have

Huntington's disease is caused by a recessive allele found on chromosome 4.

Niche-picking refers to

Most behavioural and psychological traits are polygenic traits.

A child's 46 chromosomes include about ___________ genes.

Mindy and Mandy are dizygotic twins.Therefore,they

The first ________ pairs of chromosomes are called autosomes.

Jolie has sickle-cell trait,a temporary,relatively mild form of sickle-cell anemia,but does not have full-blown sickle-cell anemia.Her condition is most likely the result of

Twin studies compare children with their biological and adoptive parents.

Sex chromosomes

If one monozygotic twin is clinically depressed,the other twin has a 25 percent chance of becoming depressed.

The Science of Child Development

Prenatal Development, Birth, and the Newborn

Growth and Health

Perceptual and Motor Development

Theories of Cognitive Development

Cognitive Processes and Academic Skills

Intelligence and Individual Differences in Cognition

Language and Communication

Emotional Development

Understanding Self and Others

Moral Understanding and Behaviour

Gender and Development

Social Influences

Filters