Question 1

Each sperm and egg contains ________ chromosomes.

Accepted Answer

A) 23 
B) 26 
C) 46 
D) a variable number of 
A) 23 
B) 26 
C) 46 
D) a variable number of

Question 2

A fertilized egg contains ________ chromosome(s).

Accepted Answer

A) 1 
B) 22 
C) 23 
D) 46 
A) 1 
B) 22 
C) 23 
D) 46

Question 3

Children with Down syndrome typically have

Accepted Answer

A) advanced development. 
B) normal development. 
C) delayed development. 
D) no development. 
A) advanced development. 
B) normal development. 
C) delayed development. 
D) no development.

Question 4

Meiosis differs from mitosis in that

Accepted Answer

A) it produces cells with half the amount of genetic material normally seen in a human cell. 
B) it involves cell division. 
C) it produces cells with a full complement of genetic material. 
D) it involves the production of bodily cells other than gametes. 
A) it produces cells with half the amount of genetic material normally seen in a human cell. 
B) it involves cell division. 
C) it produces cells with a full complement of genetic material. 
D) it involves the production of bodily cells other than gametes.

Question 5

Recessive alleles are responsible for

Accepted Answer

A) Down syndrome. 
B) Huntington's disease. 
C) Klinefelter's syndrome. 
D) phenylketonuria. 
A) Down syndrome. 
B) Huntington's disease. 
C) Klinefelter's syndrome. 
D) phenylketonuria.

Question 6

Intelligence is

Accepted Answer

A) determined by a single gene. 
B) a polygenic trait. 
C) determined by the sex chromosomes. 
D) not influenced by genetic factors. 
A) determined by a single gene. 
B) a polygenic trait. 
C) determined by the sex chromosomes. 
D) not influenced by genetic factors.

Question 7

Most behavioural and psychological characteristics follow a(n) ________ pattern of genetic inheritance.

Accepted Answer

A) dominant-recessive 
B) incomplete dominance 
C) sex-linked 
D) polygenic 
A) dominant-recessive 
B) incomplete dominance 
C) sex-linked 
D) polygenic

Question 8

When alleles in a chromosome pair are identical, they are said to be

Accepted Answer

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

Question 9

Blueprints are to a completed house as ________ are to ________.

Accepted Answer

A) phenotypes; genotypes 
B) genotypes; phenotypes 
C) recessive genes; dominant genes 
D) dominant genes; recessive genes 
A) phenotypes; genotypes 
B) genotypes; phenotypes 
C) recessive genes; dominant genes 
D) dominant genes; recessive genes

Question 10

________ is one of the few serious inherited disorders caused by a dominant allele.

Accepted Answer

A) Sickle-cell anemia 
B) Phenylketonuria 
C) Turner's syndrome 
D) Huntington's disease 
A) Sickle-cell anemia 
B) Phenylketonuria 
C) Turner's syndrome 
D) Huntington's disease

Question 11

The first 22 pairs of chromosomes

Accepted Answer

A) contain either X or Y chromosomes. 
B) determine the sex of the individual. 
C) are called autosomes. 
D) do not vary in size. 
A) contain either X or Y chromosomes. 
B) determine the sex of the individual. 
C) are called autosomes. 
D) do not vary in size.

Question 12

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

Question 13

Twins that come from a single fertilized egg that splits in two are called

Accepted Answer

A) dizygotic twins. 
B) monozygotic twins. 
C) fraternal twins. 
D) homozygous. 
A) dizygotic twins. 
B) monozygotic twins. 
C) fraternal twins. 
D) homozygous.

Question 14

Tom has Huntington's disease. You would expect him to begin to show signs of nervous system deterioration

Accepted Answer

A) at birth. 
B) during childhood. 
C) during adolescence. 
D) during middle adulthood. 
A) at birth. 
B) during childhood. 
C) during adolescence. 
D) during middle adulthood.

Question 15

An example of niche-picking is

Accepted Answer

A) parents enrolling their active child in many structured, sedentary activities in hopes that he will calm down. 
B) parents enrolling their active child in many athletic activities in hopes that he will burn off some steam. 
C) an active child choosing to participate in many athletic events. 
D) an uncoordinated child choosing to participate in athletic events in hopes of becoming more coordinated. 
A) parents enrolling their active child in many structured, sedentary activities in hopes that he will calm down. 
B) parents enrolling their active child in many athletic activities in hopes that he will burn off some steam. 
C) an active child choosing to participate in many athletic events. 
D) an uncoordinated child choosing to participate in athletic events in hopes of becoming more coordinated.

Question 16

Benji has the genotype for phenylketonuria. Which of the following statements is true?

Accepted Answer

A) Benji will be intellectually delayed. 
B) Benji's phenylketonuria is not likely to surface until he reaches middle age. 
C) If Benji avoids consuming phenylalanine, he will have normal intelligence. 
D) Benji has a high likelihood of having an older mother. 
A) Benji will be intellectually delayed. 
B) Benji's phenylketonuria is not likely to surface until he reaches middle age. 
C) If Benji avoids consuming phenylalanine, he will have normal intelligence. 
D) Benji has a high likelihood of having an older mother.

Question 17

As soon as the sperm fertilizes the egg, ________ is fixed.

Accepted Answer

A) the relationship between heredity and environment 
B) placement in the reaction range 
C) the phenotype 
D) the genotype 
A) the relationship between heredity and environment 
B) placement in the reaction range 
C) the phenotype 
D) the genotype

Question 18

A woman who has normal stature but delayed language and motor development would have which of the following disorders?

Accepted Answer

A) Klinefelter's syndrome 
B) XYY complement 
C) Turner's syndrome 
D) XXX syndrome 
A) Klinefelter's syndrome 
B) XYY complement 
C) Turner's syndrome 
D) XXX syndrome

Question 19

Which of the following is an example of a passive gene-environment relation?

Accepted Answer

A) Parents give their child "good reader" genes and provide many books and opportunities for reading. 
B) Parents give their child "good reader" genes but the child will not sit still when the parents read to her so they stop trying. 
C) A child who inherits "good reader" genes frequently goes to the library and to bookstores to get reading material. 
D) A child who inherits "good reader" genes chooses to play video games rather than read books. 
A) Parents give their child "good reader" genes and provide many books and opportunities for reading. 
B) Parents give their child "good reader" genes but the child will not sit still when the parents read to her so they stop trying. 
C) A child who inherits "good reader" genes frequently goes to the library and to bookstores to get reading material. 
D) A child who inherits "good reader" genes chooses to play video games rather than read books.

Question 20

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

Each sperm and egg contains ________ chromosomes.

A fertilized egg contains ________ chromosome(s).

Children with Down syndrome typically have

Meiosis differs from mitosis in that

Recessive alleles are responsible for

Intelligence is

Most behavioural and psychological characteristics follow a(n) ________ pattern of genetic inheritance.

When alleles in a chromosome pair are identical, they are said to be

Blueprints are to a completed house as are to .

________ is one of the few serious inherited disorders caused by a dominant allele.

The first 22 pairs of chromosomes

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

Twins that come from a single fertilized egg that splits in two are called

Tom has Huntington's disease. You would expect him to begin to show signs of nervous system deterioration

An example of niche-picking is

Benji has the genotype for phenylketonuria. Which of the following statements is true?

As soon as the sperm fertilizes the egg, ________ is fixed.

A woman who has normal stature but delayed language and motor development would have which of the following disorders?

Which of the following is an example of a passive gene-environment relation?

The first ________ pairs of chromosomes are called autosomes.

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

Each sperm and egg contains ________ chromosomes.

A fertilized egg contains ________ chromosome(s).

Children with Down syndrome typically have

Meiosis differs from mitosis in that

Recessive alleles are responsible for

Intelligence is

Most behavioural and psychological characteristics follow a(n) ________ pattern of genetic inheritance.

When alleles in a chromosome pair are identical, they are said to be

Blueprints are to a completed house as ________ are to ________.

________ is one of the few serious inherited disorders caused by a dominant allele.

The first 22 pairs of chromosomes

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

Twins that come from a single fertilized egg that splits in two are called

Tom has Huntington's disease. You would expect him to begin to show signs of nervous system deterioration

An example of niche-picking is

Benji has the genotype for phenylketonuria. Which of the following statements is true?

As soon as the sperm fertilizes the egg, ________ is fixed.

A woman who has normal stature but delayed language and motor development would have which of the following disorders?

Which of the following is an example of a passive gene-environment relation?

The first ________ pairs of chromosomes are called autosomes.

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

Filters

Blueprints are to a completed house as are to .