Question 1

The Watson-Crick model of DNA shows that the base adenine pairs with:

Accepted Answer

A) cytosine while guanine pairs with thymine. 
B) guanine while cytosine pairs with thymine. 
C) thymine while cytosine pairs with guanine. 
D) either thymine or guanine,while cytosine pairs with either thymine or guanine. 
E) either thymine or cytosine while guanine pairs with either thymine or cytosine. 
A) cytosine while guanine pairs with thymine. 
B) guanine while cytosine pairs with thymine. 
C) thymine while cytosine pairs with guanine. 
D) either thymine or guanine,while cytosine pairs with either thymine or guanine. 
E) either thymine or cytosine while guanine pairs with either thymine or cytosine.

Question 2

In eukaryal cells,what does RNA polymerase II transcribe?

Accepted Answer

A) tRNA genes 
B) small regulatory RNAs 
C) the 5S and 18S rRNAs 
D) mRNA genes 
E) rRNAs genes 
A) tRNA genes 
B) small regulatory RNAs 
C) the 5S and 18S rRNAs 
D) mRNA genes 
E) rRNAs genes

Question 3

Replication termination in E.coli involves which two proteins?

Accepted Answer

A) Tus protein and topoisomerase II. 
B) helicase and DnaG. 
C) helicase and topoisomerase II. 
D) Tus protein and DnaG. 
E) Tus protein and helicase. 
A) Tus protein and topoisomerase II. 
B) helicase and DnaG. 
C) helicase and topoisomerase II. 
D) Tus protein and DnaG. 
E) Tus protein and helicase.

Question 4

What does Rho-independent termination of transcription in bacteria involve?

Accepted Answer

A) The formation of a hairpin loop followed by a poly A sequence. 
B) The formation of a hairpin loop only. 
C) A poly U sequence followed by a poly A sequence. 
D) The formation of a hairpin loop followed by a poly U sequence. 
E) A poly A sequence followed by a hairpin loop. 
A) The formation of a hairpin loop followed by a poly A sequence. 
B) The formation of a hairpin loop only. 
C) A poly U sequence followed by a poly A sequence. 
D) The formation of a hairpin loop followed by a poly U sequence. 
E) A poly A sequence followed by a hairpin loop.

Question 5

The Hershey and Chase experiment was able to conclusively demonstrate that DNA,not protein,was the genetic material.They were able to distinguish DNA from protein since labeled _____ incorporated into DNA while labeled _____ incorporated into proteins.

Accepted Answer

A) nitrogen;sulfur 
B) magnesium;nitrogen 
C) nitrogen;magnesium 
D) phosphorous;sulfur 
E) sulfur;nitrogen 
A) nitrogen;sulfur 
B) magnesium;nitrogen 
C) nitrogen;magnesium 
D) phosphorous;sulfur 
E) sulfur;nitrogen

Question 6

All living organisms use the same genetic code for the translation of mRNA.

Accepted Answer

A) True 
 B)False

Question 7

What,in bacteria,is analogous to the autonomously replicating sequence (ARS)in yeast?

Accepted Answer

A) the promoter 
B) a plasmid 
C) a transposon 
D) the oriC 
E) a prophage 
A) the promoter 
B) a plasmid 
C) a transposon 
D) the oriC 
E) a prophage

Question 8

Which enzyme removes the RNA primer and fills in the gap during DNA replication in bacteria?

Accepted Answer

A) DNA polymerase III 
B) DNA polymerase I 
C) primase 
D) ligase 
E) DNAase 
A) DNA polymerase III 
B) DNA polymerase I 
C) primase 
D) ligase 
E) DNAase

Question 9

What are the main enzymes responsible for replication of DNA in eukaryal cells?

Accepted Answer

A) DNA pol III and DNA pol I 
B) DNA pol III and DNA pol α 
C) DNA pol I and DNA pol ε 
D) DNA pol α and DNA pol ε 
E) DNA pol ε and DNA pol δ 
A) DNA pol III and DNA pol I 
B) DNA pol III and DNA pol α 
C) DNA pol I and DNA pol ε 
D) DNA pol α and DNA pol ε 
E) DNA pol ε and DNA pol δ

Question 10

Describe the structure of DNA according to the Watson - Crick Model.

Accepted Answer

The structure of DNA according to the Wa

The Watson-Crick model of DNA shows that the base adenine pairs with:

In eukaryal cells,what does RNA polymerase II transcribe?

Replication termination in E.coli involves which two proteins?

What does Rho-independent termination of transcription in bacteria involve?

The Hershey and Chase experiment was able to conclusively demonstrate that DNA,not protein,was the genetic material.They were able to distinguish DNA from protein since labeled _ incorporated into DNA while labeled _ incorporated into proteins.

All living organisms use the same genetic code for the translation of mRNA.

What,in bacteria,is analogous to the autonomously replicating sequence (ARS)in yeast?

Which enzyme removes the RNA primer and fills in the gap during DNA replication in bacteria?

What are the main enzymes responsible for replication of DNA in eukaryal cells?

Describe the structure of DNA according to the Watson - Crick Model.

The Microbial World

Bacteria

Eukaryal Microbes

Archaea

Viruses

Cultivating Microorganisms

Viral Replication Strategies

Bacterial Genetic Analysis

Microbial Genomics

Regulation of Gene Expression

Microbial Biotechnology

Metabolism

Biogeochemical Cycles

Microbial Ecosystems

The Microbiology of Food and Water

Microbial Symbionts

Introduction to Infectious Diseases

Innate Host Defenses Against Microbial Invasion

Adaptive Immunity

Virulence Factors and Pathogenic Mechanisms of Bacterial Infections

Viral Pathogenesis

Eukaryal Microbe Pathogenesis

Control of Infectious Diseases

Filters

Exam 7: DNA Replication and Gene Expression

The Watson-Crick model of DNA shows that the base adenine pairs with:

In eukaryal cells,what does RNA polymerase II transcribe?

Replication termination in E.coli involves which two proteins?

What does Rho-independent termination of transcription in bacteria involve?

The Hershey and Chase experiment was able to conclusively demonstrate that DNA,not protein,was the genetic material.They were able to distinguish DNA from protein since labeled _____ incorporated into DNA while labeled _____ incorporated into proteins.

All living organisms use the same genetic code for the translation of mRNA.

What,in bacteria,is analogous to the autonomously replicating sequence (ARS)in yeast?

Which enzyme removes the RNA primer and fills in the gap during DNA replication in bacteria?

What are the main enzymes responsible for replication of DNA in eukaryal cells?

Describe the structure of DNA according to the Watson - Crick Model.

The Microbial World

Bacteria

Eukaryal Microbes

Archaea

Viruses

Cultivating Microorganisms

Viral Replication Strategies

Bacterial Genetic Analysis

Microbial Genomics

Regulation of Gene Expression

Microbial Biotechnology

Metabolism

Biogeochemical Cycles

Microbial Ecosystems

The Microbiology of Food and Water

Microbial Symbionts

Introduction to Infectious Diseases

Innate Host Defenses Against Microbial Invasion

Adaptive Immunity

Virulence Factors and Pathogenic Mechanisms of Bacterial Infections

Viral Pathogenesis

Eukaryal Microbe Pathogenesis

Control of Infectious Diseases

Filters

The Hershey and Chase experiment was able to conclusively demonstrate that DNA,not protein,was the genetic material.They were able to distinguish DNA from protein since labeled _ incorporated into DNA while labeled _ incorporated into proteins.