Question 1

Sickle-cell anemia has been traced to what type of mutation?

Accepted Answer

A)  frameshift 
B)  transposable element 
C)  mutagenic 
D)  base-pair substitution 
E)  viral 
A)  frameshift 
B)  transposable element 
C)  mutagenic 
D)  base-pair substitution 
E)  viral

Question 2

What type of bond is formed between amino acids?

Accepted Answer

A)  glycosidic 
B)  covalent 
C)  coordinate covalent 
D)  peptide 
E)  network 
A)  glycosidic 
B)  covalent 
C)  coordinate covalent 
D)  peptide 
E)  network

Question 3

The DNA molecule usually is made up of how many strands?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  6 
E)  12 
A)  1 
B)  2 
C)  3 
D)  6 
E)  12

Question 4

Selecting the Exception Four of the five answers listed below are correctly paired. Select the exception.

Accepted Answer

A)  A - C 
B)  C - G 
C)  A - T 
D)  T - A 
E)  A - U 
A)  A - C 
B)  C - G 
C)  A - T 
D)  T - A 
E)  A - U

Question 5

In step "b" the original strands have separated because

Accepted Answer

A)  the hydrogen bonds between bases were broken. 
B)  the sugar-phosphate linkages broke. 
C)  the polymerases stopped functioning. 
D)  the bases repelled each other. 
E)  water changed the bases into their subunits. 
A)  the hydrogen bonds between bases were broken. 
B)  the sugar-phosphate linkages broke. 
C)  the polymerases stopped functioning. 
D)  the bases repelled each other. 
E)  water changed the bases into their subunits.

Question 6

Which process employs inserting a gene into a virus that has had its own genome removed and then allowing the newly modified virus to infect target cells?

Accepted Answer

A)  transformation 
B)  transfection 
C)  DNA fingerprinting 
D)  polymerase chain reaction 
E)  gel electrophoresis 
A)  transformation 
B)  transfection 
C)  DNA fingerprinting 
D)  polymerase chain reaction 
E)  gel electrophoresis

Question 7

Xeroderma pigmentosum is caused by

Accepted Answer

A)  a thymine dimer. 
B)  a translocation. 
C)  a deletion. 
D)  an inversion. 
E)  a duplication. 
A)  a thymine dimer. 
B)  a translocation. 
C)  a deletion. 
D)  an inversion. 
E)  a duplication.

Question 8

Selecting the Exception Four of the five answers listed below are involved in gene action. Select the exception.

Accepted Answer

A)  replication 
B)  transcription 
C)  translation 
D)  polymerization 
E)  base sequence 
A)  replication 
B)  transcription 
C)  translation 
D)  polymerization 
E)  base sequence

Question 9

The appropriate adjective to describe DNA replication is

Accepted Answer

A)  nondisruptive. 
B)  semiconservative. 
C)  progressive. 
D)  natural. 
E)  lytic. 
A)  nondisruptive. 
B)  semiconservative. 
C)  progressive. 
D)  natural. 
E)  lytic.

Question 10

Therapeutic cloning could be used for

Accepted Answer

A)  replacing defective genes. 
B)  producing missing factors. 
C)  growing replacement human tissues and organs. 
D)  genome identification. 
E)  producing designer babies.. 
A)  replacing defective genes. 
B)  producing missing factors. 
C)  growing replacement human tissues and organs. 
D)  genome identification. 
E)  producing designer babies..

Question 11

Adenine and guanine are

Accepted Answer

A)  nitrogenous bases. 
B)  base pairs bonded together in DNA. 
C)  bases found only in RNA. 
D)  waste products of protein synthesis. 
E)  amino acids. 
A)  nitrogenous bases. 
B)  base pairs bonded together in DNA. 
C)  bases found only in RNA. 
D)  waste products of protein synthesis. 
E)  amino acids.

Question 12

One of the stop codes to signal ribosomes to stop adding amino acids to the protein chain is

Accepted Answer

A)  UAG. 
B)  GUA. 
C)  AUG. 
D)  TAG. 
E)  ATG. 
A)  UAG. 
B)  GUA. 
C)  AUG. 
D)  TAG. 
E)  ATG.

Sickle-cell anemia has been traced to what type of mutation?

What type of bond is formed between amino acids?

The DNA molecule usually is made up of how many strands?

Selecting the Exception Four of the five answers listed below are correctly paired. Select the exception.

In step "b" the original strands have separated because

Which process employs inserting a gene into a virus that has had its own genome removed and then allowing the newly modified virus to infect target cells?

Xeroderma pigmentosum is caused by

Selecting the Exception Four of the five answers listed below are involved in gene action. Select the exception.

The appropriate adjective to describe DNA replication is

Therapeutic cloning could be used for

Adenine and guanine are

One of the stop codes to signal ribosomes to stop adding amino acids to the protein chain is

Learning About Human Biology

Chemistry of Life

Cells and How They Work

Tissues, Organs, and Organ Systems

The Skeletal System

The Muscular System

Circulation: the Heart and Blood Vessels

Blood

Immunity and Disease

The Respiratory System

Digestion and Nutrition

The Urinary System

The Nervous System

Sensory Systems

The Endocrine System

Reproductive Systems

Development and Aging

Cell Reproduction

Introduction to Genetics

Chromosomes and Human Genetics

Genes and Disease: Cancer

Principles of Evolution

Principles of Ecology

Human Impacts on the Biosphere

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Exam 21: DNA, Genes, and Biotechnology

Sickle-cell anemia has been traced to what type of mutation?

What type of bond is formed between amino acids?

The DNA molecule usually is made up of how many strands?

Selecting the Exception Four of the five answers listed below are correctly paired. Select the exception.

In step "b" the original strands have separated because

Which process employs inserting a gene into a virus that has had its own genome removed and then allowing the newly modified virus to infect target cells?

Xeroderma pigmentosum is caused by

Selecting the Exception Four of the five answers listed below are involved in gene action. Select the exception.

The appropriate adjective to describe DNA replication is

Therapeutic cloning could be used for

Adenine and guanine are

One of the stop codes to signal ribosomes to stop adding amino acids to the protein chain is

Learning About Human Biology

Chemistry of Life

Cells and How They Work

Tissues, Organs, and Organ Systems

The Skeletal System

The Muscular System

Circulation: the Heart and Blood Vessels

Blood

Immunity and Disease

The Respiratory System

Digestion and Nutrition

The Urinary System

The Nervous System

Sensory Systems

The Endocrine System

Reproductive Systems

Development and Aging

Cell Reproduction

Introduction to Genetics

Chromosomes and Human Genetics

Genes and Disease: Cancer

Principles of Evolution

Principles of Ecology

Human Impacts on the Biosphere

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