Question 1

Because of the Human Genome Project,scientists now know the function of all 21,000 human genes.

Accepted Answer

A) True 
 B)False  False

Question 2

Which of the following does NOT correctly state a difference between prokaryotic and eukaryotic DNA organization?

Accepted Answer

A)  Prokaryotic DNA groups genes with related functions together, whereas eukaryotic DNA does not. 
B)  Prokaryotic DNA has few noncoding regions, unlike eukaryotic DNA. 
C)  Eukaryotic DNA is usually arranged more simply than prokaryotic DNA. 
D)  Eukaryotic genomes contain more genes than prokaryotic genomes. 
A)  Prokaryotic DNA groups genes with related functions together, whereas eukaryotic DNA does not. 
B)  Prokaryotic DNA has few noncoding regions, unlike eukaryotic DNA. 
C)  Eukaryotic DNA is usually arranged more simply than prokaryotic DNA. 
D)  Eukaryotic genomes contain more genes than prokaryotic genomes. C

Question 3

If one strand of DNA has the sequence CGATT,the sequence of the other strand of the same molecule will be

Accepted Answer

A)  CGATT. 
B)  GCTUU. 
C)  TACGG. 
D)  GCTAA. 
A)  CGATT. 
B)  GCTUU. 
C)  TACGG. 
D)  GCTAA. D

Question 4

The 220 different cell types in the human body each contain all of the same DNA found in every other cell type.

Accepted Answer

A) True 
 B)False

Question 5

Before a cell divides,it

Accepted Answer

A)  breaks down its DNA. 
B)  deletes old genetic information. 
C)  copies information from neighboring cells. 
D)  copies its own genetic information. 
A)  breaks down its DNA. 
B)  deletes old genetic information. 
C)  copies information from neighboring cells. 
D)  copies its own genetic information.

Question 6

The enzymes involved in ATP synthesis in the mitochondria are likely to be encoded by ________ genes.

Accepted Answer

A)  regulatory 
B)  DNA repair 
C)  housekeeping 
D)  transposon 
A)  regulatory 
B)  DNA repair 
C)  housekeeping 
D)  transposon

Question 7

A permanent change in the DNA base sequence due to an uncorrected mismatch error is called a ________.

Accepted Answer

The answer of A permanent change in the DNA base...

Question 8

The hereditary genetic material present in all living cells is

Accepted Answer

A)  carbohydrate. 
B)  protein. 
C)  DNA. 
D)  RNA. 
A)  carbohydrate. 
B)  protein. 
C)  DNA. 
D)  RNA.

Question 9

Translation builds DNA from an RNA template.

Accepted Answer

A) True 
 B)False

Question 10

DNA ________ results in the copying of a DNA molecule.

Accepted Answer

The answer of DNA ________ results in the copying of...

Question 11

A mistake during which of the following processes would have the most long-lasting effects on an organism and its offspring?

Accepted Answer

A)  replication in germ line cells 
B)  transcription in somatic cells 
C)  translation in germ line cells 
D)  mitosis in somatic cells 
A)  replication in germ line cells 
B)  transcription in somatic cells 
C)  translation in germ line cells 
D)  mitosis in somatic cells

Question 12

DNA is often damaged or may be replicated incorrectly.Which of the following is NOT true?

Accepted Answer

A)  Humans have the most efficient DNA repair proteins. 
B)  A mutation in the gene for a DNA repair protein may make mutations in other genes more common. 
C)  Certain proteins can repair damaged DNA. 
D)  The vast majority of DNA damage is fixed. 
A)  Humans have the most efficient DNA repair proteins. 
B)  A mutation in the gene for a DNA repair protein may make mutations in other genes more common. 
C)  Certain proteins can repair damaged DNA. 
D)  The vast majority of DNA damage is fixed.

Question 13

The significance of specific base pairing in DNA is that

Accepted Answer

A)  it stabilizes the sugar molecule. 
B)  it provides a method for making exact copies of DNA. 
C)  it prevents errors in DNA replication. 
D)  protein copies can be made directly from the DNA. 
A)  it stabilizes the sugar molecule. 
B)  it provides a method for making exact copies of DNA. 
C)  it prevents errors in DNA replication. 
D)  protein copies can be made directly from the DNA.

Question 14

When Francis Collins described the Human Genome Database as a "shop manual," he meant that the human genome contains

Accepted Answer

A)  information about how closely related we are to other organisms. 
B)  information about the probability of an individual developing a disease. 
C)  instructions for making mechanical objects. 
D)  instructions for making all the RNAs and proteins that make up a human. 
A)  information about how closely related we are to other organisms. 
B)  information about the probability of an individual developing a disease. 
C)  instructions for making mechanical objects. 
D)  instructions for making all the RNAs and proteins that make up a human.

Question 15

To repair DNA,a protein cuts out the damaged section.

Accepted Answer

A) True 
 B)False

Question 16

Assume a cell present in your body has performed a mismatch error during the process of DNA replication.This error has resulted in the generation of a new allele for one of your genes.For this new allele to be inherited by your offspring,which of the following conditions must be true?

Accepted Answer

A)  The error must be repaired. 
B)  The error must be caused by a chemical mutagen. 
C)  The error must occur in the germ line cells. 
D)  The new allele produced must be dominant. 
A)  The error must be repaired. 
B)  The error must be caused by a chemical mutagen. 
C)  The error must occur in the germ line cells. 
D)  The new allele produced must be dominant.

Question 17

The order of the base pairs in a DNA molecule

Accepted Answer

A)  differs from species to species. 
B)  is identical in all organisms. 
C)  is identical in organisms of the same species. 
D)  differs from cell to cell in a given organism. 
A)  differs from species to species. 
B)  is identical in all organisms. 
C)  is identical in organisms of the same species. 
D)  differs from cell to cell in a given organism.

Question 18

When examining the two complementary strands of nucleotides in one DNA molecule,you would expect to find that

Accepted Answer

A)  the sum of Gs and Cs in one strand would be equal to the sum of the Gs and Cs in the other strand. 
B)  the sum of Ts and As in one strand would be equal to the sum of the Cs and Gs in the other strand. 
C)  the sum of Ts and As in one strand would be greater than the sum of the Ts and As in the other strand. 
D)  the sum of As and Cs in one strand would be less than the sum of the Ts and Gs in the other strand. 
A)  the sum of Gs and Cs in one strand would be equal to the sum of the Gs and Cs in the other strand. 
B)  the sum of Ts and As in one strand would be equal to the sum of the Cs and Gs in the other strand. 
C)  the sum of Ts and As in one strand would be greater than the sum of the Ts and As in the other strand. 
D)  the sum of As and Cs in one strand would be less than the sum of the Ts and Gs in the other strand.

Question 19

During replication,each "old" DNA strand serves as a template for a new strand.

Accepted Answer

A) True 
 B)False

Question 20

Replication of DNA CANNOT begin until

Accepted Answer

A)  phosphate bonds between nucleotides are broken. 
B)  hydrogen bonds between complementary bases are broken. 
C)  covalent bonds between sugar molecules are broken. 
D)  hydrogen bonds between nucleotides in one strand are broken. 
A)  phosphate bonds between nucleotides are broken. 
B)  hydrogen bonds between complementary bases are broken. 
C)  covalent bonds between sugar molecules are broken. 
D)  hydrogen bonds between nucleotides in one strand are broken.

Exam 11: DNA and Genes

Because of the Human Genome Project,scientists now know the function of all 21,000 human genes.

Which of the following does NOT correctly state a difference between prokaryotic and eukaryotic DNA organization?

If one strand of DNA has the sequence CGATT,the sequence of the other strand of the same molecule will be

The 220 different cell types in the human body each contain all of the same DNA found in every other cell type.

Before a cell divides,it

The enzymes involved in ATP synthesis in the mitochondria are likely to be encoded by ________ genes.

A permanent change in the DNA base sequence due to an uncorrected mismatch error is called a ________.

The hereditary genetic material present in all living cells is

Translation builds DNA from an RNA template.

DNA ________ results in the copying of a DNA molecule.

A mistake during which of the following processes would have the most long-lasting effects on an organism and its offspring?

DNA is often damaged or may be replicated incorrectly.Which of the following is NOT true?

The significance of specific base pairing in DNA is that

When Francis Collins described the Human Genome Database as a "shop manual," he meant that the human genome contains

To repair DNA,a protein cuts out the damaged section.

Assume a cell present in your body has performed a mismatch error during the process of DNA replication.This error has resulted in the generation of a new allele for one of your genes.For this new allele to be inherited by your offspring,which of the following conditions must be true?

The order of the base pairs in a DNA molecule

When examining the two complementary strands of nucleotides in one DNA molecule,you would expect to find that

During replication,each "old" DNA strand serves as a template for a new strand.

Replication of DNA CANNOT begin until

The Nature of Science and the Characteristics of Life

The Chemistry of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photo Synthesis and Cellular Respiration

Cell Division

Cancer and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

From Gene to Protein

DNA Technology

How Evolution Works

The Origin of Species

The Evolution of Biodiversity

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Biosphere

Growth of Populations

Animal Behavior

Ecological Communities

Ecosystems

Global Change

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