Question 1

Down syndrome results from nondisjunction of the 21st chromosome.

Accepted Answer

A) True 
 B)False

Question 2

Because sickle cell anemia is a codominant trait, people who have one gene for sickle cell anemia are different from people with two genes for normal blood.

Accepted Answer

A) True 
 B)False

Question 3

The mother is a carrier for albinism and the father has two dominant genes for normal skin color. The probability that their offspring will be albino is

Accepted Answer

A)  0%. 
B)  25%. 
C)  50%. 
D)  100%. 
A)  0%. 
B)  25%. 
C)  50%. 
D)  100%.

Question 4

Monosomy and trisomy are considered a genetic predisposition for disease.

Accepted Answer

A) True 
 B)False

Question 5

Two genes that are located on the same chromosome are said to be linked.

Accepted Answer

A) True 
 B)False

Question 6

Cystic fibrosis is caused by a dominant gene that prevents the proper movement of sodium into and out of the cell.

Accepted Answer

A) True 
 B)False

Question 7

If both the mother and father are albino, the probability that their offspring will be albino is

Accepted Answer

A)  0%. 
B)  25%. 
C)  50%. 
D)  100%. 
A)  0%. 
B)  25%. 
C)  50%. 
D)  100%.

Question 8

Which of the following conditions results from trisomy?

Accepted Answer

A)  Down syndrome 
B)  Turner syndrome 
C)  Klinefelter syndrome 
D)  Both A and C 
A)  Down syndrome 
B)  Turner syndrome 
C)  Klinefelter syndrome 
D)  Both A and C

Question 9

The entire collection of genetic material in a cell is called the genome.

Accepted Answer

A) True 
 B)False

Question 10

PKU can be managed by careful dietary restrictions of certain amino acids.

Accepted Answer

A) True 
 B)False

Question 11

What is a karyotype? Explain a situation in which it could be used for genetic counseling.

Accepted Answer

A karyotype is a visual representation o

Question 12

A father and mother who both have normal skin color but carry the gene for albinism will have only offspring with normal skin color.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following conditions results from monosomy?

Accepted Answer

A)  Down syndrome 
B)  Turner syndrome 
C)  Klinefelter syndrome 
D)  Both A and C 
A)  Down syndrome 
B)  Turner syndrome 
C)  Klinefelter syndrome 
D)  Both A and C

Question 14

Match each term with its corresponding definition or description.
-Gene that expresses itself whenever it is in a cell

Accepted Answer

A) Proteome 
B) Crossing-over 
C) Dominant gene 
D) Gene 
E) p-arm
F)Trisomy
G)Genetics
H)Recessive gene
I)Genome
J)q-arm
K)Sex-linked trait
L)Genetic mutation
M)Monosomy
N)Autosome
O)Nondisjunction 
A) Proteome 
B) Crossing-over 
C) Dominant gene 
D) Gene 
E) p-arm
F)Trisomy
G)Genetics
H)Recessive gene
I)Genome
J)q-arm
K)Sex-linked trait
L)Genetic mutation
M)Monosomy
N)Autosome
O)Nondisjunction

Question 15

Match each term with its corresponding definition or description.
-A chart that illustrates the genetic relationship in a family over several generations

Accepted Answer

A) Turner syndrome 
B) Cystic fibrosis 
C) Down syndrome 
D) Pedigree 
E) Single-gene disease
F)Klinefelter syndrome
G)Karyotype
H)Genetic predisposition
I)PKU
J)Punnett square 
A) Turner syndrome 
B) Cystic fibrosis 
C) Down syndrome 
D) Pedigree 
E) Single-gene disease
F)Klinefelter syndrome
G)Karyotype
H)Genetic predisposition
I)PKU
J)Punnett square

Question 16

The scientific study of inheritance is called genetics.

Accepted Answer

A) True 
 B)False

Question 17

An ideogram is a drawing of a chromosome.

Accepted Answer

A) True 
 B)False

Question 18

The first step in gene expression is the formation of a molecule of mRNA.

Accepted Answer

A) True 
 B)False

Question 19

The human genome contains about how many genes?

Accepted Answer

A)  100,000 
B)  75,000 
C)  50,000 
D)  20,000 
A)  100,000 
B)  75,000 
C)  50,000 
D)  20,000

Question 20

Explain the cause and symptoms of Klinefelter syndrome.

Accepted Answer

Klinefelter syndrome is a genetic condit

Exam 25: Genetics and Genetic Diseases

Down syndrome results from nondisjunction of the 21st chromosome.

Because sickle cell anemia is a codominant trait, people who have one gene for sickle cell anemia are different from people with two genes for normal blood.

The mother is a carrier for albinism and the father has two dominant genes for normal skin color. The probability that their offspring will be albino is

Monosomy and trisomy are considered a genetic predisposition for disease.

Two genes that are located on the same chromosome are said to be linked.

Cystic fibrosis is caused by a dominant gene that prevents the proper movement of sodium into and out of the cell.

If both the mother and father are albino, the probability that their offspring will be albino is

Which of the following conditions results from trisomy?

The entire collection of genetic material in a cell is called the genome.

PKU can be managed by careful dietary restrictions of certain amino acids.

What is a karyotype? Explain a situation in which it could be used for genetic counseling.

A father and mother who both have normal skin color but carry the gene for albinism will have only offspring with normal skin color.

Which of the following conditions results from monosomy?

Match each term with its corresponding definition or description. -Gene that expresses itself whenever it is in a cell

Match each term with its corresponding definition or description. -A chart that illustrates the genetic relationship in a family over several generations

The scientific study of inheritance is called genetics.

An ideogram is a drawing of a chromosome.

The first step in gene expression is the formation of a molecule of mRNA.

The human genome contains about how many genes?

Explain the cause and symptoms of Klinefelter syndrome.

Introduction to the Body

Chemistry of Life

Cells

Tissues

Organ Systems

Mechanisms of Disease

Skin and Membranes

Skeletal System

Muscular System

Nervous System

Senses

Endocrine System

Blood

Heart

Blood

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition and Metabolism

Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

Reproductive Systems

Growth, Development, and Aging

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