Question 1

During the DNA replication process, which of the following organisms would have the fewest origins of replication per cell?

Accepted Answer

A)  a rapidly dividing Streptococcus bacterium 
B)  a yeast cell 
C)  a human 
D)  a young oak tree 
E)  a fruit fly 
A)  a rapidly dividing Streptococcus bacterium 
B)  a yeast cell 
C)  a human 
D)  a young oak tree 
E)  a fruit fly A

Question 2

Which of the following does NOT belong with the others?

Accepted Answer

A)  replication fork 
B)  single-stranded binding proteins 
C)  DNA ligase 
D)  topoisomerase 
E)  helicase 
A)  replication fork 
B)  single-stranded binding proteins 
C)  DNA ligase 
D)  topoisomerase 
E)  helicase C

Question 3

________ attaches DNA sequences at the ends of eukaryotic chromosomes.

Accepted Answer

A)  Polymerase 
B)  Ligase 
C)  Telomerase 
D)  Topoisomerase 
E)  Primase 
A)  Polymerase 
B)  Ligase 
C)  Telomerase 
D)  Topoisomerase 
E)  Primase C

Question 4

The protein of T2 bacteriophage is labeled with 35S and the DNA with 32P. Where would one detect most of the 32P if the T2 bacteriophage were allowed to infect the bacteria?

Accepted Answer

A)  on the phage coat surrounding the T2 bacteriophage 
B)  on the membrane of the infected bacteria 
C)  inside the T2 bacteriophage capsid 
D)  inside the infected bacteria 
E)  The 32P would be equally distributed within the T2 bacteriophage and infected bacteria. 
A)  on the phage coat surrounding the T2 bacteriophage 
B)  on the membrane of the infected bacteria 
C)  inside the T2 bacteriophage capsid 
D)  inside the infected bacteria 
E)  The 32P would be equally distributed within the T2 bacteriophage and infected bacteria.

Question 5

Studies by Avery, MacLeod, and McCarty with different strains of bacteria and those by Hershey and Chase with T2 bacteriophage determined that proteins are highly complex molecules that form the genetic material for bacteria and viruses.

Accepted Answer

A) True 
 B)False

Question 6

Unlike the leading strand, ______________ are made in replicating the lagging strand of DNA.

Accepted Answer

A)  primers 
B)  nucleases 
C)  Okazaki fragments 
D)  pyrophosphates 
E)  DNA polymerases 
A)  primers 
B)  nucleases 
C)  Okazaki fragments 
D)  pyrophosphates 
E)  DNA polymerases

Question 7

Where would one expect to find the most telomerase?

Accepted Answer

A)  male germ cells that give rise to gametes 
B)  skin cells from a 60-year-old individual 
C)  skin cells from a 2-year-old individual 
D)  a nerve cell from a 60-year-old individual 
E)  a nerve cell from a 2-year-old individual 
A)  male germ cells that give rise to gametes 
B)  skin cells from a 60-year-old individual 
C)  skin cells from a 2-year-old individual 
D)  a nerve cell from a 60-year-old individual 
E)  a nerve cell from a 2-year-old individual

Question 8

Which of the following scientist-discoveries is mismatched?

Accepted Answer

A)  Watson, Crick, Wilkins, and Franklin-DNA structure 
B)  Avery, MacLeod, and McCarty-DNA is the genetic material 
C)  Meselson and Stahl-mechanism of DNA replication 
D)  Griffith-chromosomes 
E)  Hershey and Chase-DNA is the genetic material of bacteriophage 
A)  Watson, Crick, Wilkins, and Franklin-DNA structure 
B)  Avery, MacLeod, and McCarty-DNA is the genetic material 
C)  Meselson and Stahl-mechanism of DNA replication 
D)  Griffith-chromosomes 
E)  Hershey and Chase-DNA is the genetic material of bacteriophage

Question 9

The progressive shortening of telomeres in DNA correlates with cell senescence.

Accepted Answer

A) True 
 B)False

Question 10

All of the following nucleotide bases are pyrimidines EXCEPT

Accepted Answer

A)  adenine. 
B)  thymine. 
C)  cytosine. 
D)  uracil. 
E)  cytosine and thymine. 
A)  adenine. 
B)  thymine. 
C)  cytosine. 
D)  uracil. 
E)  cytosine and thymine.

Question 11

What is the complement DNA strand to 5?-ATTCGGTGA-3??

Accepted Answer

A)  5?-TAAGCCACT-3? 
B)  3?-CGGATTGTC-5? 
C)  5?-CGGATTGTC-3? 
D)  3?-TAAGCCACT-5? 
E)  3?-ATTCGGTGA-5 
A)  5?-TAAGCCACT-3? 
B)  3?-CGGATTGTC-5? 
C)  5?-CGGATTGTC-3? 
D)  3?-TAAGCCACT-5? 
E)  3?-ATTCGGTGA-5

Question 12

Which of the following statements about telomeres is INCORRECT?

Accepted Answer

A)  Telomeres are produced by telomerase. 
B)  Telomeres are found at the ends of DNA. 
C)  Telomeres are short repeat sequences. 
D)  Telomeres would predominate more in cells of older than younger individuals. 
E)  Telomeres are crucial to the viability of a cell that replicates often. 
A)  Telomeres are produced by telomerase. 
B)  Telomeres are found at the ends of DNA. 
C)  Telomeres are short repeat sequences. 
D)  Telomeres would predominate more in cells of older than younger individuals. 
E)  Telomeres are crucial to the viability of a cell that replicates often.

Exam 11: Nucleic Acid Structure, DNA Replication, and Chromosome Structure

During the DNA replication process, which of the following organisms would have the fewest origins of replication per cell?

Which of the following does NOT belong with the others?

________ attaches DNA sequences at the ends of eukaryotic chromosomes.

The protein of T2 bacteriophage is labeled with 35S and the DNA with 32P. Where would one detect most of the 32P if the T2 bacteriophage were allowed to infect the bacteria?

Studies by Avery, MacLeod, and McCarty with different strains of bacteria and those by Hershey and Chase with T2 bacteriophage determined that proteins are highly complex molecules that form the genetic material for bacteria and viruses.

Unlike the leading strand, ______________ are made in replicating the lagging strand of DNA.

Where would one expect to find the most telomerase?

Which of the following scientist-discoveries is mismatched?

The progressive shortening of telomeres in DNA correlates with cell senescence.

All of the following nucleotide bases are pyrimidines EXCEPT

What is the complement DNA strand to 5?-ATTCGGTGA-3??

Which of the following statements about telomeres is INCORRECT?

An Introduction to Biology

The Chemical Basis of Life I: Atoms, Molecules, and Water

The Chemical Basis of Life II: Organic Molecules

General Features of Cells

Membrane Structure, Synthesis, and Transport

An Introduction to Energy, Enzymes, and Metabolism

Cellular Respiration, Fermentation, and Secondary Metabolism

Photosynthesis

Cell Communication

Multicellularity

Gene Expression at the Molecular Level

Gene Regulation

Mutation, DNA Repair, and Cancer

The Eukaryotic Cell Cycle, Mitosis, and Meiosis

Simple Patterns of Inheritance

Complex Patterns of Inheritance

Genetics of Viruses and Bacteria

Developmental Genetics

Genetic Technology

Genomes, Proteomes, and Bioinformatics

The Origin and History of Life

An Introduction to Evolution

Population Genetics

Origin of Species and Macroevolution

Taxonomy and Systematics

Bacteria and Archaea

Protists

Plants and the Conquest of Land

The Evolution and Diversity of Modern Gymnosperms and Angiosperms

Fungi

An Introduction to Animal Diversity

The Invertebrates

The Vertebrates

An Introduction to Flowering Plant Form and Function

Flowering Plants: Behavior

Flowering Plants: Nutrition

Flowering Plants: Transport

Flowering Plants: Reproduction

Introduction to Animal Form and Function

Neuroscience I: Cells of the Nervous System

Neuroscience Ii: Evolution and Function of the Brain and Nervous Systems

Neuroscience Iii: Sensory Systems

The Muscular-Skeletal System and Locomotion

Nutrition, Digestion, and Absorption

Control of Energy Balance, Metabolic Rate, and Body Temperature

Circulatory Systems

Respiratory Systems

Excretory Systems and Salt and Water Balance

Endocrine Systems

Animal Reproduction

Animal Development

Immune Systems

An Introduction to Ecology and Biomes

Behavioral Ecology

Population Ecology

Species Interactions

Community Ecology

Ecosystems Ecology

Biodiversity and Conservation Biology

Filters

The protein of T2 bacteriophage is labeled with ³⁵S and the DNA with ³²P. Where would one detect most of the ³²P if the T2 bacteriophage were allowed to infect the bacteria?