Question 1

Which scientist is incorrectly matched with their discovery?

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) Gierer and Schramm..........viral genome can be RNA 
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) Gierer and Schramm..........viral genome can be RNA

Question 2

Type S Streptococcus pneumoniae bacterium is lethal and will kill its host.If heat inactivated the S strain dies and becomes nonlethal.Type R Streptococcus pneumoniae is a nonvirulent strain of bacteria.What would occur if one were to inject both the R strain and heat-killed S strains into a host organism such as the mouse?

Accepted Answer

A) The S strain would be transformed into the nonvirulent R strain and kill the host. 
B) The R strain would be transformed into the virulent S strain and kill the host. 
C) The S strain would be transformed into the nonvirulent R strain and not affect the host. 
D) The R strain would be transformed into the virulent S strain and not affect the host. 
E) Neither the S nor the R strain would changE. 
A) The S strain would be transformed into the nonvirulent R strain and kill the host. 
B) The R strain would be transformed into the virulent S strain and kill the host. 
C) The S strain would be transformed into the nonvirulent R strain and not affect the host. 
D) The R strain would be transformed into the virulent S strain and not affect the host. 
E) Neither the S nor the R strain would changE.

Question 3

Which function of genetic material accounts for the appropriate expression of proteins?

Accepted Answer

A) Information storage 
B) Ability to replicate 
C) Transmission to the next generation 
D) Ability to replicate and transmission to the next generation 
E) Production of variation within and between species 
A) Information storage 
B) Ability to replicate 
C) Transmission to the next generation 
D) Ability to replicate and transmission to the next generation 
E) Production of variation within and between species

Question 4

Reverse transcriptase is an enzyme that can synthesize DNA from an RNA template.What DNA sequence is produced from an RNA molecule with the sequence 5'AUUGACGGU3'?

Accepted Answer

A) 3'UAACUGCCA5' 
B) 5'TTTCTGCCT3' 
C) 3'TAACTGCCA5' 
D) 5'ATTCAGCCT3' 
E) 3'TUUCTGCCU5' 
A) 3'UAACUGCCA5' 
B) 5'TTTCTGCCT3' 
C) 3'TAACTGCCA5' 
D) 5'ATTCAGCCT3' 
E) 3'TUUCTGCCU5'

Question 5

What is NOT a protein involved in DNA replication?

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

Question 6

Which function of genetic material accounts for hemoglobin proteins to be expressed in blood (bone marrow)and myoglobin proteins to be expressed in muscle tissue?

Accepted Answer

A) Information storage 
B) Ability to replicate 
C) Transmission to the next generation 
D) Ability to replicate and transmission to the next generation 
E) Production of variation within and between species 
A) Information storage 
B) Ability to replicate 
C) Transmission to the next generation 
D) Ability to replicate and transmission to the next generation 
E) Production of variation within and between species

Question 7

Which is FALSE when comparing RNA and DNA?

Accepted Answer

A) Both are produced by phosphodiester linkages. 
B) Both are composed of phosphate groups. 
C) Both are composed of sugars. 
D) Both are composed of identical nucleotides. 
E) Both are composed of a phosphate group,a pentose sugar,and a nitrogenous basE. 
A) Both are produced by phosphodiester linkages. 
B) Both are composed of phosphate groups. 
C) Both are composed of sugars. 
D) Both are composed of identical nucleotides. 
E) Both are composed of a phosphate group,a pentose sugar,and a nitrogenous basE.

Question 8

If the sequence for one strand of DNA is 3'-TCGATT-5' then its complementary strand would have a sequence of 3'-AGCTAA-5'.

Accepted Answer

A) True 
 B)False

Question 9

The function(s)of DNA polymerase includes

Accepted Answer

A) DNA synthesis 
B) DNA proofreading 
C) removes RNA primers and fills in the gaps 
D) DNA synthesis and proofreading 
E) DNA synthesis,DNA proofreading,and removes RNA primers and fills in the gaps 
A) DNA synthesis 
B) DNA proofreading 
C) removes RNA primers and fills in the gaps 
D) DNA synthesis and proofreading 
E) DNA synthesis,DNA proofreading,and removes RNA primers and fills in the gaps

Question 10

Some bacteria have been found to have much higher rates of mutation than other members of their populations;they are termed "mutators." What do you think is the reason for their faster rates of mutation?

Accepted Answer

A) They have much smaller genomes than regular bacteriA. 
B) They are much better at bacterial transformation than regular bacteria. 
C) They are incapable of bacterial transformation. 
D) Their DNA polymerase has compromised 3' to 5' proofreading function. 
E) Their DNA polymerase has compromised 5' to 3' polymerase function. 
A) They have much smaller genomes than regular bacteriA. 
B) They are much better at bacterial transformation than regular bacteria. 
C) They are incapable of bacterial transformation. 
D) Their DNA polymerase has compromised 3' to 5' proofreading function. 
E) Their DNA polymerase has compromised 5' to 3' polymerase function.

Question 11

The mechanism of DNA replication is

Accepted Answer

A) conservative. 
B) intermediate. 
C) semiconservative. 
D) dispersive. 
E) complementary. 
A) conservative. 
B) intermediate. 
C) semiconservative. 
D) dispersive. 
E) complementary.

Question 12

Which molecule catalyzes covalent bond formation between fragments of DNA.

Accepted Answer

A) helicase 
B) ligase 
C) polymerase 
D) primase 
E) nuclease 
A) helicase 
B) ligase 
C) polymerase 
D) primase 
E) nuclease

Question 13

Which function of genetic material accounts for high level protection,such as multiple DNA repair mechanisms and storage within the double membrane of the nucleus,that is afforded to eukaryotic cells?

Accepted Answer

A) Information storage 
B) Ability to replicate 
C) Transmission to the next generation 
D) Ability to replicate and transmission to the next generation 
E) Production of variation within and between species 
A) Information storage 
B) Ability to replicate 
C) Transmission to the next generation 
D) Ability to replicate and transmission to the next generation 
E) Production of variation within and between species

Exam 9: Nucleic Acid Structure, DNA Replication, and Chromosome Structure

Which scientist is incorrectly matched with their discovery?

Which function of genetic material accounts for the appropriate expression of proteins?

Reverse transcriptase is an enzyme that can synthesize DNA from an RNA template.What DNA sequence is produced from an RNA molecule with the sequence 5'AUUGACGGU3'?

What is NOT a protein involved in DNA replication?

Which function of genetic material accounts for hemoglobin proteins to be expressed in blood (bone marrow)and myoglobin proteins to be expressed in muscle tissue?

Which is FALSE when comparing RNA and DNA?

If the sequence for one strand of DNA is 3'-TCGATT-5' then its complementary strand would have a sequence of 3'-AGCTAA-5'.

The function(s)of DNA polymerase includes

Some bacteria have been found to have much higher rates of mutation than other members of their populations;they are termed "mutators." What do you think is the reason for their faster rates of mutation?

The mechanism of DNA replication is

Which molecule catalyzes covalent bond formation between fragments of DNA.

Which function of genetic material accounts for high level protection,such as multiple DNA repair mechanisms and storage within the double membrane of the nucleus,that is afforded to eukaryotic cells?

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, Transport, and Cell Junctions

Energy, Enzymes, and Cellular Respiration

Photosynthesis

Cell Communication

Gene Expression at the Molecular Level

Gene Regulation

Mutation, DNA Repair, and Cancer

The Eukaryotic Cell Cycle, Mitosis, and Meiosis

Patterns of Inheritance

Genetics of Viruses and Bacteria

Genetic Technology

Genomes, Repetitive Sequences, and Bioinformatics

Origin and History of Life

An Introduction to Evolution and Population Genetics

Origin of Species and Macroevolution

Taxonomy and Systematics

Microorganisms: The Archaea, Bacteria, and Protists

Plants

Fungi

Animal Diversity: Invertebrates

Animal Diversity: Vertebrates

An Introduction to Flowering Plant Form and Function

Flowering Plants: Plant Behavior

Flowering Plants: Nutrition and Transport

Flowering Plants: Reproduction

Animal Bodies and Homeostasis

Neuroscience I: Structure, Function, and Evolution of Nervous Systems

Neuroscience II: Sensory Systems

Muscular-Skeletal Systems

Digestive Systems and Nutrition

Circulatory Systems

Respiratory Systems

Excretory Systems and the Homeostasis of Internal Fluids

Endocrine Systems

Animal Reproduction and Development

Immune Systems

Animal Behavior

Ecology and the Physical Environment

Population Ecology

Community Ecology

Ecosystem Ecology

Biodiversity and Conservation Biology

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