Question 1

The p-arm is the long segment of the chromosome.

Accepted Answer

A) True 
 B)False

Question 2

Match each term with its corresponding definition or description.
-condition of people with XXY chromosomes

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 3

Tay-Sachs disease is caused by a failure to make an enzyme that converts an amino acid into tyrosine.

Accepted Answer

A) True 
 B)False

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

If a creature normally has 32 chromosomes in its cells,the gametes it produces would have 16 chromosomes.

Accepted Answer

A) True 
 B)False

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

A color-blind mother and a normal vision father will have both sons and daughters who are color-blind.

Accepted Answer

A) True 
 B)False

Question 8

The human genome contains about how many genes?

Accepted Answer

A)  100,000 
B)  75,000 
C)  50,000 
D)  25,000 
A)  100,000 
B)  75,000 
C)  50,000 
D)  25,000

Question 9

Match each term with its corresponding definition or description.
-a photograph of chromosomes that are cut out and pasted on a chart in pairs according to size

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 10

All mutations are harmful to the organism.

Accepted Answer

A) True 
 B)False

Question 11

MATCHING
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 12

Which of the following conditions results from monosomy?

Accepted Answer

A)  Down syndrome 
B)  Turner syndrome 
C)  Klinefelter syndrome 
D)  both A and C above 
A)  Down syndrome 
B)  Turner syndrome 
C)  Klinefelter syndrome 
D)  both A and C above

Question 13

Viruses and bacterial plasmids have been used to get genetic material into the cell to treat genetic diseases.

Accepted Answer

A) True 
 B)False

Question 14

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 15

If both the mother and father are carriers for albinism,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 16

The process by which gametes have their chromosome number reduced by half is called

Accepted Answer

A)  mitosis 
B)  crossing-over 
C)  meiosis 
D)  linkage 
A)  mitosis 
B)  crossing-over 
C)  meiosis 
D)  linkage

Question 17

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 18

The structure that divides the chromosome into longer and shorter segments is called the

Accepted Answer

A)  centromere 
B)  genome 
C)  mitochondria 
D)  centrioles 
A)  centromere 
B)  genome 
C)  mitochondria 
D)  centrioles

Question 19

What is a genetic mutation? List three possible genetic mutagens.

Accepted Answer

A genetic mutation is a change in the DN

Question 20

MATCHING
Match each term with its corresponding definition or description.
-a non-sex chromosome

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

Exam 25: Genetics and Genetic Diseases

The p-arm is the long segment of the chromosome.

Match each term with its corresponding definition or description. -condition of people with XXY chromosomes

Tay-Sachs disease is caused by a failure to make an enzyme that converts an amino acid into tyrosine.

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

If a creature normally has 32 chromosomes in its cells,the gametes it produces would have 16 chromosomes.

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

A color-blind mother and a normal vision father will have both sons and daughters who are color-blind.

The human genome contains about how many genes?

Match each term with its corresponding definition or description. -a photograph of chromosomes that are cut out and pasted on a chart in pairs according to size

All mutations are harmful to the organism.

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

Which of the following conditions results from monosomy?

Viruses and bacterial plasmids have been used to get genetic material into the cell to treat genetic diseases.

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

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

The process by which gametes have their chromosome number reduced by half is called

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

The structure that divides the chromosome into longer and shorter segments is called the

What is a genetic mutation? List three possible genetic mutagens.

MATCHING Match each term with its corresponding definition or description. -a non-sex chromosome

An Introduction to the Structure and Function of the Body

Chemistry of Life

Cells

Tissues

Organ Systems of the Body

Mechanisms of Disease

The Integumentary System and Body Membranes

The Skeletal System

The Muscular System

The Nervous System

The Senses

The Endocrine System

Blood

The Heart

The Circulation of the Blood

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Nutrition and Metabolism

The Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

The Reproductive Systems

Growth and Development

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