Question 1

When phenotypes are caused by the combined effect of many separate genes,the pattern of inheritance is referred to as

Accepted Answer

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

Question 2

Sometimes experiences change the expression of DNA-the genetic code is preserved by some genes are "turned off".This process is known as _________ because the chemical silencer is a _________ molecule.

Accepted Answer

A) methylation;methyl 
B) acetylation;acetyl 
C) sulfuration;sulphur 
D) acetonation;acetone 
A) methylation;methyl 
B) acetylation;acetyl 
C) sulfuration;sulphur 
D) acetonation;acetone

Question 3

Explain basic concepts of single gene inheritance using the terms alleles,chromosomes,homozygous,heterozygous,dominant,recessive.

Accepted Answer

A good answer will include the following

Question 4

Assisted reproductive technology is used more often in Canada than in the United States.

Accepted Answer

A) True 
 B)False

Question 5

One problem with twin studies is that the experiences of monozygotic twins may be more similar than the experiences of dizygotic twins so that heredity appears to have a greater influence.

Accepted Answer

A) True 
 B)False

Question 6

Scores for the ability to resist temptation were found to be

Accepted Answer

A) more strongly correlated among monozygotic twins than among dizygotic twins. 
B) less strongly correlated among monozygotic twins than among dizygotic twins. 
C) of equal correlation between monozygotic twins and dizygotic twins. 
D) completely unrelated in all twins. 
A) more strongly correlated among monozygotic twins than among dizygotic twins. 
B) less strongly correlated among monozygotic twins than among dizygotic twins. 
C) of equal correlation between monozygotic twins and dizygotic twins. 
D) completely unrelated in all twins.

Question 7

The branch of genetics that addresses the inheritance of behavioural and psychological traits is referred to as

Accepted Answer

A) evocative genetics. 
B) active genetics. 
C) behavioural genetics. 
D) polygenic genetics. 
A) evocative genetics. 
B) active genetics. 
C) behavioural genetics. 
D) polygenic genetics.

Question 8

The incidence of Down syndrome

Accepted Answer

A) increases as the mother gets older. 
B) decreases as the mother gets older. 
C) decreases as the father gets older. 
D) is unrelated to parental age. 
A) increases as the mother gets older. 
B) decreases as the mother gets older. 
C) decreases as the father gets older. 
D) is unrelated to parental age.

Question 9

Hemophilia is a sex-linked disorder.

Accepted Answer

A) True 
 B)False

Question 10

Who has the greatest risk of having a child with Down syndrome?

Accepted Answer

A) 28-year-old Meredith 
B) 22-year-old Katie 
C) 36-year-old Lisa 
D) 44-year-old Susan 
A) 28-year-old Meredith 
B) 22-year-old Katie 
C) 36-year-old Lisa 
D) 44-year-old Susan

Question 11

Curly hair,farsightedness,and thick lips are all examples of dominant phenotypes

Accepted Answer

A) True 
 B)False

Question 12

Huntington's disease involves progressive deterioration of the nervous system,which causes

Accepted Answer

A) muscle spasms,depression,and personality changes. 
B) schizophrenia. 
C) an accumulation of poisonous substances in the body. 
D) sterility. 
A) muscle spasms,depression,and personality changes. 
B) schizophrenia. 
C) an accumulation of poisonous substances in the body. 
D) sterility.

Question 13

The range of phenotypes that the same genotype may produce in reaction to the environment where development takes place is called the reaction range.

Accepted Answer

A) True 
 B)False

Question 14

If a trait is strongly influenced by genetic factors you would expect to find that

Accepted Answer

A) adopted children resemble their biological parents more than their adoptive parents on that trait. 
B) adopted children resemble their adoptive parents more than their biological parents on that trait. 
C) dizygotic twins would be more similar on that trait than monozygotic twins would be. 
D) dizygotic twins would be more similar on that trait than siblings would be. 
A) adopted children resemble their biological parents more than their adoptive parents on that trait. 
B) adopted children resemble their adoptive parents more than their biological parents on that trait. 
C) dizygotic twins would be more similar on that trait than monozygotic twins would be. 
D) dizygotic twins would be more similar on that trait than siblings would be.

Question 15

Children with Down syndrome typically have

Accepted Answer

A) advanced development. 
B) normal development. 
C) slower than normal development. 
D) no development. 
A) advanced development. 
B) normal development. 
C) slower than normal development. 
D) no development.

Question 16

The presence of a Y chromosome appears to be necessary for life.

Accepted Answer

A) True 
 B)False

Question 17

Aletha and Frank are worried about their one-year-old baby.His eyes are almond-shaped (unlike theirs),his head seems small,and his development is slower than average-he's just now starting to sit up by himself.Which of the following disorders would you suspect their baby has?

Accepted Answer

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

Question 18

Autosomal chromosomes

Accepted Answer

A) come in pairs containing one large and one small chromosome. 
B) come in pairs of chromosomes that are about the same size. 
C) determine the sex of a child. 
D) have an X and a Y chromosome. 
A) come in pairs containing one large and one small chromosome. 
B) come in pairs of chromosomes that are about the same size. 
C) determine the sex of a child. 
D) have an X and a Y chromosome.

Question 19

The term "reaction range" refers to the concept that

Accepted Answer

A) one phenotype can lead to many different genotypes. 
B) one genotype can lead to different phenotypes. 
C) one genotype leads to one and only one phenotype. 
D) phenotypes are unrelated to genotypes. 
A) one phenotype can lead to many different genotypes. 
B) one genotype can lead to different phenotypes. 
C) one genotype leads to one and only one phenotype. 
D) phenotypes are unrelated to genotypes.

Question 20

Abner has a dominant allele for a full head of hair and a recessive allele for male pattern baldness.You would expect Abner to

Accepted Answer

A) be completely bald. 
B) be partially bald. 
C) have a full head of hair. 
D) have thin hair. 
A) be completely bald. 
B) be partially bald. 
C) have a full head of hair. 
D) have thin hair.

When phenotypes are caused by the combined effect of many separate genes,the pattern of inheritance is referred to as

Sometimes experiences change the expression of DNA-the genetic code is preserved by some genes are "turned off".This process is known as _ because the chemical silencer is a _ molecule.

Explain basic concepts of single gene inheritance using the terms alleles,chromosomes,homozygous,heterozygous,dominant,recessive.

Assisted reproductive technology is used more often in Canada than in the United States.

One problem with twin studies is that the experiences of monozygotic twins may be more similar than the experiences of dizygotic twins so that heredity appears to have a greater influence.

Scores for the ability to resist temptation were found to be

The branch of genetics that addresses the inheritance of behavioural and psychological traits is referred to as

The incidence of Down syndrome

Hemophilia is a sex-linked disorder.

Who has the greatest risk of having a child with Down syndrome?

Curly hair,farsightedness,and thick lips are all examples of dominant phenotypes

Huntington's disease involves progressive deterioration of the nervous system,which causes

The range of phenotypes that the same genotype may produce in reaction to the environment where development takes place is called the reaction range.

If a trait is strongly influenced by genetic factors you would expect to find that

Children with Down syndrome typically have

The presence of a Y chromosome appears to be necessary for life.

Aletha and Frank are worried about their one-year-old baby.His eyes are almond-shaped (unlike theirs),his head seems small,and his development is slower than average-he's just now starting to sit up by himself.Which of the following disorders would you suspect their baby has?

Autosomal chromosomes

The term "reaction range" refers to the concept that

Abner has a dominant allele for a full head of hair and a recessive allele for male pattern baldness.You would expect Abner to

The Science of Child Development

Prenatal Development, Birth, and the Newborn

Growth and Health

Perceptual and Motor Development

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Exam 2: Genetic Bases of Child Development

When phenotypes are caused by the combined effect of many separate genes,the pattern of inheritance is referred to as

Sometimes experiences change the expression of DNA-the genetic code is preserved by some genes are "turned off".This process is known as _________ because the chemical silencer is a _________ molecule.

Explain basic concepts of single gene inheritance using the terms alleles,chromosomes,homozygous,heterozygous,dominant,recessive.

Assisted reproductive technology is used more often in Canada than in the United States.

One problem with twin studies is that the experiences of monozygotic twins may be more similar than the experiences of dizygotic twins so that heredity appears to have a greater influence.

Scores for the ability to resist temptation were found to be

The branch of genetics that addresses the inheritance of behavioural and psychological traits is referred to as

The incidence of Down syndrome

Hemophilia is a sex-linked disorder.

Who has the greatest risk of having a child with Down syndrome?

Curly hair,farsightedness,and thick lips are all examples of dominant phenotypes

Huntington's disease involves progressive deterioration of the nervous system,which causes

The range of phenotypes that the same genotype may produce in reaction to the environment where development takes place is called the reaction range.

If a trait is strongly influenced by genetic factors you would expect to find that

Children with Down syndrome typically have

The presence of a Y chromosome appears to be necessary for life.

Aletha and Frank are worried about their one-year-old baby.His eyes are almond-shaped (unlike theirs),his head seems small,and his development is slower than average-he's just now starting to sit up by himself.Which of the following disorders would you suspect their baby has?

Autosomal chromosomes

The term "reaction range" refers to the concept that

Abner has a dominant allele for a full head of hair and a recessive allele for male pattern baldness.You would expect Abner to

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

Sometimes experiences change the expression of DNA-the genetic code is preserved by some genes are "turned off".This process is known as _ because the chemical silencer is a _ molecule.