Question 1

Discuss the three steps involved in the processing of eukaryotic mRNA.

Accepted Answer

All three RNA processing steps occur wit

Question 2

The presence of dsRNA usually indicates the presence of _________ within a cell; this molecule is eliminated from eukaryotes through a mechanism known as _________.

Accepted Answer

an RNA vir

Question 3

Intron removal and exon joining are accomplished by the

Accepted Answer

A)  cytoskeleton. 
B)  microtubules. 
C)  spliceosome. 
D)  telomerase enzyme. 
A)  cytoskeleton. 
B)  microtubules. 
C)  spliceosome. 
D)  telomerase enzyme.

Question 4

The conserved sequence of the________ in eukaryotes somewhat resembles the Pribnow box in the promoters of Bacteria.

Accepted Answer

The answer of The conserved sequence of the________ in eukaryotes...

Question 5

Diagram the process of meiosis.

Accepted Answer

The diagram should contain two major cel

Question 6

Regulation of transcription in Archaea shares major similarities with that of Bacteria, perhaps because of________ and _________.

Accepted Answer

the overall small ci

Question 7

Explain why it is unsurprising that mitochondria and chloroplasts contain RNA polymerase, which is bacterial in origin.

Accepted Answer

Recognizing the endosymbiotic theory, wh

Question 8

RNA polymerase I transcribes genes for _________ , RNA polymerase II transcribes genes for all of the , and RNA polymerase III transcribes genes for________ .

Accepted Answer

the two large rRNA m

Question 9

Regulation of transcription in Archaea is similar to that of ________, while the transcription apparatus of Archaea is similar to that of________ .

Accepted Answer

The answer of Regulation of transcription in Archaea is similar...

Question 10

RNA processing in eukaryotic cells removes________ .

Accepted Answer

The answer of RNA processing in eukaryotic cells removes________ ....

Question 11

Transcription and translation are spatially separate processes in ,________because the________are located in the nucleus and the ________are in the cytoplasm.

Accepted Answer

eukaryotes

Question 12

An important sequence in the initiation of transcription in Archaea is the

Accepted Answer

A)  Pribnow box. 
B)  start codon. 
C)  TATA box. 
D)  polysome site. 
A)  Pribnow box. 
B)  start codon. 
C)  TATA box. 
D)  polysome site.

Question 13

RdRP is an enzyme that copies siRNA in

Accepted Answer

A)  plants. 
B)  Archaea. 
C)  Bacteria. 
D)  humans. 
A)  plants. 
B)  Archaea. 
C)  Bacteria. 
D)  humans.

Question 14

Consider the lifetime of an mRNA transcript within an archaeon, a bacterium, and a eukaryote. In which cell type might these last the longest and why?

Accepted Answer

The answer of Consider the lifetime of an mRNA transcript...

Question 15

Telomeres are

Accepted Answer

A)  regions that provide an attachment site for the spindle fibers that pull paired chromosomes apart during mitosis. 
B)  the complex assemblage of proteins that links the DNA of the centromere region to the spindle fibers. 
C)  repetitive DNA sequences that are used to replicate the ends of eukaryotic chromosomes. 
D)  specific proteins that bind to the ends of linear chromosomes and provide DNA polymerase with a free hydroxyl group onto which the first nucleotide can be added. 
A)  regions that provide an attachment site for the spindle fibers that pull paired chromosomes apart during mitosis. 
B)  the complex assemblage of proteins that links the DNA of the centromere region to the spindle fibers. 
C)  repetitive DNA sequences that are used to replicate the ends of eukaryotic chromosomes. 
D)  specific proteins that bind to the ends of linear chromosomes and provide DNA polymerase with a free hydroxyl group onto which the first nucleotide can be added.

Question 16

Compared with the amount of DNA in a single yeast chromosome, the amount of DNA in a single prokaryotic chromosome is

Accepted Answer

A)  less. 
B)  not discernible without comparing specific species. 
C)  about the same. 
D)  greater. 
A)  less. 
B)  not discernible without comparing specific species. 
C)  about the same. 
D)  greater.

Question 17

Histones are positively charged _________ that bind to and neutralize the charge of________ , which is caused by the presence of phosphate groups.

Accepted Answer

A)  DNA / DNA 
B)  DNA / RNA 
C)  proteins / DNA 
D)  RNA / RNA 
A)  DNA / DNA 
B)  DNA / RNA 
C)  proteins / DNA 
D)  RNA / RNA

Question 18

The processes of transcription and translation are coupled processes in

Accepted Answer

A)  eukaryotic cells. 
B)  prokaryotic cells. 
C)  both eukaryotic and prokaryotic cells. 
D)  neither eukaryotic nor prokaryotic cells. 
A)  eukaryotic cells. 
B)  prokaryotic cells. 
C)  both eukaryotic and prokaryotic cells. 
D)  neither eukaryotic nor prokaryotic cells.

Question 19

Introns and exons are found in Eukarya, but they are extremely rare in both Bacteria and Archaea.

Accepted Answer

A) True 
 B)False

Question 20

The guanosine cap that is formed during mRNA processing is needed for translation because _________ .

Accepted Answer

it promotes the form

Exam 7: Archael and Eukaryotic Molecular Biology

Discuss the three steps involved in the processing of eukaryotic mRNA.

The presence of dsRNA usually indicates the presence of _________ within a cell; this molecule is eliminated from eukaryotes through a mechanism known as _________.

Intron removal and exon joining are accomplished by the

The conserved sequence of the________ in eukaryotes somewhat resembles the Pribnow box in the promoters of Bacteria.

Diagram the process of meiosis.

Regulation of transcription in Archaea shares major similarities with that of Bacteria, perhaps because of________ and _________.

Explain why it is unsurprising that mitochondria and chloroplasts contain RNA polymerase, which is bacterial in origin.

RNA polymerase I transcribes genes for _________ , RNA polymerase II transcribes genes for all of the , and RNA polymerase III transcribes genes for________ .

Regulation of transcription in Archaea is similar to that of ________, while the transcription apparatus of Archaea is similar to that of________ .

RNA processing in eukaryotic cells removes________ .

Transcription and translation are spatially separate processes in ,________because the________are located in the nucleus and the ________are in the cytoplasm.

An important sequence in the initiation of transcription in Archaea is the

RdRP is an enzyme that copies siRNA in

Consider the lifetime of an mRNA transcript within an archaeon, a bacterium, and a eukaryote. In which cell type might these last the longest and why?

Telomeres are

Compared with the amount of DNA in a single yeast chromosome, the amount of DNA in a single prokaryotic chromosome is

Histones are positively charged _________ that bind to and neutralize the charge of________ , which is caused by the presence of phosphate groups.

The processes of transcription and translation are coupled processes in

Introns and exons are found in Eukarya, but they are extremely rare in both Bacteria and Archaea.

The guanosine cap that is formed during mRNA processing is needed for translation because _________ .

Microorganisms and Microbiology

A Brief Journey to the Microbial World

Cell Structure and Function in Bacteria and Archaea

Nutrition, Culture, and Metabolism of Microorganisms

Microbial Growth

Molecular Biology of Bacteria

Regulation of Gene Expression

Viruses and Virology

Genetics of Bacteria and Arachaea

Genetic Engineering

Microbial Genomics

Phototrophy, Chemolithotrophy, and Major Biosyntheses

Catabolism of Organic Compounds

Commercial Products and Biotechnology

Microbial Evolution and Systematics

Bacteria: the Proteobacteria

Other Bacteria

Archaea

Eukaryotic Cell Biology and Eukaryotic Microorganisms

Viral Diversity

Methods in Microbial Ecology

Major Microbial Habitats and Diversity

Nutrient Cycles, Biodegradation, and Bioremediation

Microbial Symbioses

Microbial Growth Control

Microbial Interactions With Humans

Immunity and Host Defense

Immune Mechanisms

Molecular Immunology

Diagnostic Microbiology and Immunology

Epidemiology

Person-To-Person Microbial Diseases

Vectorborne and Soilborne Microbial Pathogens

Wastewater Treatment, Water Purification, and Waterborne Microbial Diseases

Food Preservation and Foodborne Microbial Diseases

Filters

The presence of dsRNA usually indicates the presence of _ within a cell; this molecule is eliminated from eukaryotes through a mechanism known as _.

Regulation of transcription in Archaea shares major similarities with that of Bacteria, perhaps because of and _.

RNA polymerase I transcribes genes for _ , RNA polymerase II transcribes genes for all of the , and RNA polymerase III transcribes genes for .

Regulation of transcription in Archaea is similar to that of , while the transcription apparatus of Archaea is similar to that of .

Transcription and translation are spatially separate processes in ,because theare located in the nucleus and the are in the cytoplasm.

Histones are positively charged _ that bind to and neutralize the charge of , which is caused by the presence of phosphate groups.