Question 1

Which of the following designations indicates a sex-linked trait?

Accepted Answer

A)  A 
B)  IA 
C)  XB 
D)  a 
E)  i 
A)  A 
B)  IA 
C)  XB 
D)  a 
E)  i

Question 2

The probability of tossing a coin and having it be heads or tails is

Accepted Answer

A)  1/4. 
B)  1/2. 
C)  1. 
D)  0. 
E)  2. 
A)  1/4. 
B)  1/2. 
C)  1. 
D)  0. 
E)  2.

Question 3

If a mother is a carrier for color-blindness and her husband is not color-blind,what are the probable genotypes of the children?

Accepted Answer

A)  one normal daughter, one carrier daughter, one normal son, and one color-blind son 
B)  two normal daughters, one normal son, and one color-blind son 
C)  two carrier daughters, one normal son, and one color-blind son 
D)  one normal daughter, one carrier daughter, and two normal sons 
E)  one normal daughter, one carrier daughter, and two color-blind sons 
A)  one normal daughter, one carrier daughter, one normal son, and one color-blind son 
B)  two normal daughters, one normal son, and one color-blind son 
C)  two carrier daughters, one normal son, and one color-blind son 
D)  one normal daughter, one carrier daughter, and two normal sons 
E)  one normal daughter, one carrier daughter, and two color-blind sons

Question 4

Julie has a genetic disorder.Julie and her husband,Shane,have three children,none of which have the genetic disorder.How is this disorder most likely inherited?

Accepted Answer

A)  autosomal dominant 
B)  autosomal recessive 
C)  heterozygous dominant 
D)  The environment influences the trait instead of the genetics. 
E)  100% inheritance from the father since the children are not affected. 
A)  autosomal dominant 
B)  autosomal recessive 
C)  heterozygous dominant 
D)  The environment influences the trait instead of the genetics. 
E)  100% inheritance from the father since the children are not affected.

Question 5

An allele is to a gene as a locus is to a

Accepted Answer

A)  gamete. 
B)  phenotype. 
C)  chromosome. 
D)  genotype. 
E)  unit of heredity. 
A)  gamete. 
B)  phenotype. 
C)  chromosome. 
D)  genotype. 
E)  unit of heredity.

Which of the following designations indicates a sex-linked trait?

The probability of tossing a coin and having it be heads or tails is

If a mother is a carrier for color-blindness and her husband is not color-blind,what are the probable genotypes of the children?

Julie has a genetic disorder.Julie and her husband,Shane,have three children,none of which have the genetic disorder.How is this disorder most likely inherited?

An allele is to a gene as a locus is to a

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Exam 21: Patterns of Genetic Inheritance

Which of the following designations indicates a sex-linked trait?

The probability of tossing a coin and having it be heads or tails is

If a mother is a carrier for color-blindness and her husband is not color-blind,what are the probable genotypes of the children?

Julie has a genetic disorder.Julie and her husband,Shane,have three children,none of which have the genetic disorder.How is this disorder most likely inherited?

An allele is to a gene as a locus is to a

Exploring Life and Science

Chemistry of Life

Cell Structure and Function

Organization and Regulation of Body Systems

Cardiovascular System: Heart and Blood Vessels

Cardiovascular System: Blood

The Lymphatic and Immune Systems

Infectious Diseases

Digestive System and Nutrition

Respiratory System

Urinary System

Skeletal System

Muscular System

Nervous System

Senses

Endocrine System

Reproductive System

Development and Aging

Patterns of Chromosome Inheritance

Cancer

Dna Biology and Technology

Human Evolution

Ecology and the Nature of Ecosystems

Human Interactions With the Biosphere

Filters