Question 1

During conception two gametes combine to form how many pairs of chromosomes?

Accepted Answer

A) 184 
B) 92 
C) 23 
D) 46 
A) 184 
B) 92 
C) 23 
D) 46

Question 2

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 with 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 with 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 3

Wendy's development was normal through childhood and early adulthood. However, during her 40s she began to experience muscle spasms, depression, and personality changes. Which of the following disorders or diseases is most likely to be causing her symptoms?

Accepted Answer

A) Phenylketonuria 
B) Huntington's disease 
C) Turner's syndrome 
D) XXX syndrome 
A) Phenylketonuria 
B) Huntington's disease 
C) Turner's syndrome 
D) XXX syndrome

Question 4

Adoption studies tend to study mothers more often than fathers because

Accepted Answer

A) mothers tend to have a stronger genetic influence on their children than fathers do. 
B) mothers tend to have a stronger environmental influence on their children than fathers do. 
C) fathers generally have less genetic and environmental influence on their children's development than mothers do. 
D) it's harder to get information about the biological fathers than about the mothers. 
A) mothers tend to have a stronger genetic influence on their children than fathers do. 
B) mothers tend to have a stronger environmental influence on their children than fathers do. 
C) fathers generally have less genetic and environmental influence on their children's development than mothers do. 
D) it's harder to get information about the biological fathers than about the mothers.

Question 5

Why are relatively few inherited disorders caused by two dominant alleles?

Accepted Answer

A) Because most disorders caused by dominant alleles lead to sterility which means the dominant allele will not be passed on. 
B) Because genetic testing can more readily identify dominant rather than recessive alleles, genetic counseling has more successfully reduced the incidence of disorders caused by dominant alleles. 
C) Because every person with one of the dominant alleles will have the disorder, and people with most of these disorders do not usually live long enough to reproduce, so the allele will not be passed on. 
D) Because individuals carrying dominant alleles for a disorder are less likely to actually have the disorder than individuals carrying a recessive allele for a disorder. 
A) Because most disorders caused by dominant alleles lead to sterility which means the dominant allele will not be passed on. 
B) Because genetic testing can more readily identify dominant rather than recessive alleles, genetic counseling has more successfully reduced the incidence of disorders caused by dominant alleles. 
C) Because every person with one of the dominant alleles will have the disorder, and people with most of these disorders do not usually live long enough to reproduce, so the allele will not be passed on. 
D) Because individuals carrying dominant alleles for a disorder are less likely to actually have the disorder than individuals carrying a recessive allele for a disorder.

During conception two gametes combine to form how many pairs of chromosomes?

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

Wendy's development was normal through childhood and early adulthood. However, during her 40s she began to experience muscle spasms, depression, and personality changes. Which of the following disorders or diseases is most likely to be causing her symptoms?

Adoption studies tend to study mothers more often than fathers because

Why are relatively few inherited disorders caused by two dominant alleles?

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

During conception two gametes combine to form how many pairs of chromosomes?

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

Wendy's development was normal through childhood and early adulthood. However, during her 40s she began to experience muscle spasms, depression, and personality changes. Which of the following disorders or diseases is most likely to be causing her symptoms?

Adoption studies tend to study mothers more often than fathers because

Why are relatively few inherited disorders caused by two dominant alleles?

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