Question 1

If the allele for brown eyes is dominant and the allele for blue eyes is recessive, which genotype produces a person with blue eyes?

Accepted Answer

A) A blue-eyed person is homozygous with 2 alleles for brown eyes. 
B) A blue-eyed person is homozygous with 2 alleles for blue eyes. 
C) A blue-eyed person is heterozygous with 1 allele for blue eyes and 1 allele for brown eyes. 
D) The alleles for eye color are demonstrating codominance. 
A) A blue-eyed person is homozygous with 2 alleles for brown eyes. 
B) A blue-eyed person is homozygous with 2 alleles for blue eyes. 
C) A blue-eyed person is heterozygous with 1 allele for blue eyes and 1 allele for brown eyes. 
D) The alleles for eye color are demonstrating codominance.

Question 2

Tyler has Down syndrome and is intellectually delayed. He is in a regular classroom at school, a practice known as

Accepted Answer

A) enrichment. 
B) niche-picking. 
C) an evocative relation. 
D) mainstreaming. 
A) enrichment. 
B) niche-picking. 
C) an evocative relation. 
D) mainstreaming.

Question 3

The textbook's example study of extraversion in identical and fraternal twins demonstrated that

Accepted Answer

A) identical twins were more extraverted than fraternal twins. 
B) fraternal twins were more extraverted than identical twins. 
C) identical twin pairs were more similar than fraternal twin pairs. 
D) there was no differences between identical and fraternal twin pairs. 
A) identical twins were more extraverted than fraternal twins. 
B) fraternal twins were more extraverted than identical twins. 
C) identical twin pairs were more similar than fraternal twin pairs. 
D) there was no differences between identical and fraternal twin pairs.

Question 4

A passive gene-environment relation is

Accepted Answer

A) most common with infants and young children. 
B) most common with adolescents. 
C) involves nature but not nurture. 
D) involves nurture but not nature. 
A) most common with infants and young children. 
B) most common with adolescents. 
C) involves nature but not nurture. 
D) involves nurture but not nature.

Question 5

Eggs and sperm are also called

Accepted Answer

A) chromosomes. 
B) autosomes. 
C) genes. 
D) gametes. 
A) chromosomes. 
B) autosomes. 
C) genes. 
D) gametes.

Question 6

Lucas has one allele for normal blood cells and one allele for sickle-shaped cells. Lucas' blood cell alleles are

Accepted Answer

A) recessive. 
B) dominant. 
C) heterozygous. 
D) homozygous. 
A) recessive. 
B) dominant. 
C) heterozygous. 
D) homozygous.

Question 7

Inherited disorders

Accepted Answer

A) are most often caused by dominant alleles. 
B) are relatively rare. 
C) do not run in families. 
D) are more common than disorders caused by the wrong number of chromosomes. 
A) are most often caused by dominant alleles. 
B) are relatively rare. 
C) do not run in families. 
D) are more common than disorders caused by the wrong number of chromosomes.

Question 8

The forces within a family that make children different from one another are referred to as

Accepted Answer

A) an evocative gene-environment relation. 
B) passive gene-environment relations. 
C) incomplete dominance. 
D) nonshared environmental influences. 
A) an evocative gene-environment relation. 
B) passive gene-environment relations. 
C) incomplete dominance. 
D) nonshared environmental influences.

Question 9

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

Accepted Answer

A) blue eyes 
B) an allele for sickle-shaped cells 
C) an XX chromosome pattern 
D) codominant genes 
A) blue eyes 
B) an allele for sickle-shaped cells 
C) an XX chromosome pattern 
D) codominant genes

Question 10

Fertility procedures are now available to help couples conceive a child, but they are

Accepted Answer

A) only done at private healthcare clinics. 
B) rife with moral and ethical concerns. 
C) outlawed in most provinces. 
D) only available to couples who have been screened for proper parenting skills. 
A) only done at private healthcare clinics. 
B) rife with moral and ethical concerns. 
C) outlawed in most provinces. 
D) only available to couples who have been screened for proper parenting skills.

Question 11

Which of the following chromosomal disorders does not involve abnormal sex chromosomes?

Accepted Answer

A) Turner's syndrome 
B) XXX syndrome 
C) Down syndrome 
D) Klinefelter's syndrome 
A) Turner's syndrome 
B) XXX syndrome 
C) Down syndrome 
D) Klinefelter's syndrome

Question 12

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 13

Guanine and other nucleotide bases contribute to the formation of _____ during DNA replication.

Accepted Answer

A) quadruplex structures 
B) meiosis 
C) gametes 
D) chromosomes 
A) quadruplex structures 
B) meiosis 
C) gametes 
D) chromosomes

Question 14

During conception the following occurs-

Accepted Answer

A) many sperm simultaneously begin to burrow through the egg's cell wall. 
B) one sperm burrows through the egg's cell wall. 
C) a chemical change in the egg's cell wall occurs as the sperm begin burrowing. 
D) gametes are created through meiosis. 
A) many sperm simultaneously begin to burrow through the egg's cell wall. 
B) one sperm burrows through the egg's cell wall. 
C) a chemical change in the egg's cell wall occurs as the sperm begin burrowing. 
D) gametes are created through meiosis.

Question 15

An individual's physical, behavioural, and psychological features are known as one's

Accepted Answer

A) phenotype. 
B) deoxyribonucleic acid. 
C) genotype. 
D) genes. 
A) phenotype. 
B) deoxyribonucleic acid. 
C) genotype. 
D) genes.

Question 16

Technically, how many "parents" can a child have?

Accepted Answer

A) 2 
B) 4 
C) 3 
D) 5 
A) 2 
B) 4 
C) 3 
D) 5

Question 17

The complete set of genes that makes up a person's heredity is called

Accepted Answer

A) an allele. 
B) deoxyribonucleic acid. 
C) a genotype. 
D) a phenotype. 
A) an allele. 
B) deoxyribonucleic acid. 
C) a genotype. 
D) a phenotype.

Question 18

Twin studies

Accepted Answer

A) cannot be used to study polygenic traits such as intelligence. 
B) are based on the assumption that monozygotic twins are not more similar genetically than dizygotic twins. 
C) are based on the assumption that heredity influences a trait if identical twins are more alike than fraternal twins. 
D) often underestimate the influence of heredity because identical twins may have more similar environments than fraternal twins. 
A) cannot be used to study polygenic traits such as intelligence. 
B) are based on the assumption that monozygotic twins are not more similar genetically than dizygotic twins. 
C) are based on the assumption that heredity influences a trait if identical twins are more alike than fraternal twins. 
D) often underestimate the influence of heredity because identical twins may have more similar environments than fraternal twins.

Question 19

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

Question 20

A researcher uses a twin study to determine the influence of heredity on emotionality. If emotionality is influenced by heredity, the researcher will find that the level of emotionality is more similar in

Accepted Answer

A) sibling pairs than in identical twins. 
B) fraternal twins than in sibling pairs. 
C) fraternal twins than in identical twins. 
D) identical twins than in fraternal twins. 
A) sibling pairs than in identical twins. 
B) fraternal twins than in sibling pairs. 
C) fraternal twins than in identical twins. 
D) identical twins than in fraternal twins.

If the allele for brown eyes is dominant and the allele for blue eyes is recessive, which genotype produces a person with blue eyes?

Tyler has Down syndrome and is intellectually delayed. He is in a regular classroom at school, a practice known as

The textbook's example study of extraversion in identical and fraternal twins demonstrated that

A passive gene-environment relation is

Eggs and sperm are also called

Lucas has one allele for normal blood cells and one allele for sickle-shaped cells. Lucas' blood cell alleles are

Inherited disorders

The forces within a family that make children different from one another are referred to as

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

Fertility procedures are now available to help couples conceive a child, but they are

Which of the following chromosomal disorders does not involve abnormal sex chromosomes?

Mindy and Mandy are dizygotic twins. Therefore, they

Guanine and other nucleotide bases contribute to the formation of _____ during DNA replication.

During conception the following occurs-

An individual's physical, behavioural, and psychological features are known as one's

Technically, how many "parents" can a child have?

The complete set of genes that makes up a person's heredity is called

Twin studies

Who provides the best example of niche-picking?

A researcher uses a twin study to determine the influence of heredity on emotionality. If emotionality is influenced by heredity, the researcher will find that the level of emotionality is more similar in

Child Development: Theories and Themes

Research in Child Development

Prenatal Development and Birth

Physical Development in Infants and Toddlers

Cognition in Infants and Toddlers

Social and Emotional Development in Infants and Toddlers

Physical Growth in Preschool Children

Cognitive Development in Preschool Children

Social and Emotional Development in Preschool Children

Physical Development in Middle Childhood

Cognitive Development in Middle Childhood

Social and Emotional Development in Middle Childhood

Physical Growth in Adolescents

Cognitive Processes in Adolescents

Social and Emotional Development in Adolescents

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Exam 3: Genetic Bases of Child Development

If the allele for brown eyes is dominant and the allele for blue eyes is recessive, which genotype produces a person with blue eyes?

Tyler has Down syndrome and is intellectually delayed. He is in a regular classroom at school, a practice known as

The textbook's example study of extraversion in identical and fraternal twins demonstrated that

A passive gene-environment relation is

Eggs and sperm are also called

Lucas has one allele for normal blood cells and one allele for sickle-shaped cells. Lucas' blood cell alleles are

Inherited disorders

The forces within a family that make children different from one another are referred to as

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

Fertility procedures are now available to help couples conceive a child, but they are

Which of the following chromosomal disorders does not involve abnormal sex chromosomes?

Mindy and Mandy are dizygotic twins. Therefore, they

Guanine and other nucleotide bases contribute to the formation of _____ during DNA replication.

During conception the following occurs-

An individual's physical, behavioural, and psychological features are known as one's

Technically, how many "parents" can a child have?

The complete set of genes that makes up a person's heredity is called

Twin studies

Who provides the best example of niche-picking?

A researcher uses a twin study to determine the influence of heredity on emotionality. If emotionality is influenced by heredity, the researcher will find that the level of emotionality is more similar in

Child Development: Theories and Themes

Research in Child Development

Prenatal Development and Birth

Physical Development in Infants and Toddlers

Cognition in Infants and Toddlers

Social and Emotional Development in Infants and Toddlers

Physical Growth in Preschool Children

Cognitive Development in Preschool Children

Social and Emotional Development in Preschool Children

Physical Development in Middle Childhood

Cognitive Development in Middle Childhood

Social and Emotional Development in Middle Childhood

Physical Growth in Adolescents

Cognitive Processes in Adolescents

Social and Emotional Development in Adolescents

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