Question 1

Term for a special sequence at the end of the chromosome in eukaryal cells.

Accepted Answer

A)  a terminator 
B)  a centromere 
C)  a telomere 
D)  an antiorigin. 
E)  an enhancer 
A)  a terminator 
B)  a centromere 
C)  a telomere 
D)  an antiorigin. 
E)  an enhancer

Question 2

Transcription termination in eukaryal cells is more complex than in bacterial cells as the RNA molecule undergoes further processing before becoming a functional mRNA.Which of these BEST describes this processing?

Accepted Answer

A)  Capping the 3' end with 7-methyl-guanosine, adding a poly-A sequence at the 5' end and removing internal sequences called introns. 
B)  Capping the 3' end with 7-methyl-guanosine, adding a poly-A sequence at the 5' end and removing internal sequences called exons. 
C)  Capping the 5' end with 7-methyl guanosine, adding a poly-A sequence at the 3' end and removing internal sequences called introns. 
D)  Capping the 5' end with 7-methyl-guanosine, adding a poly-A sequence at the 3' end and removing internal sequences called exons. 
E)  Capping the 3' end with 7-methyl-guanosine and adding a poly-A sequence at the 3' end. 
A)  Capping the 3' end with 7-methyl-guanosine, adding a poly-A sequence at the 5' end and removing internal sequences called introns. 
B)  Capping the 3' end with 7-methyl-guanosine, adding a poly-A sequence at the 5' end and removing internal sequences called exons. 
C)  Capping the 5' end with 7-methyl guanosine, adding a poly-A sequence at the 3' end and removing internal sequences called introns. 
D)  Capping the 5' end with 7-methyl-guanosine, adding a poly-A sequence at the 3' end and removing internal sequences called exons. 
E)  Capping the 3' end with 7-methyl-guanosine and adding a poly-A sequence at the 3' end.

Question 3

The main difference between Bacteria and Archaea chromosomal DNA when compared to Eukarya chromosomal DNA,is that the Bacteria or Archaea chromosome usually:

Accepted Answer

A)  is circular while Eukarya is linear. 
B)  is diploid while Eukarya is haploid. 
C)  consist of several chromosomes while Eukarya has a single chromosome. 
D)  contains the base uracil while Eukarya has thymine in place of uracil. 
E)  is found in a non-condensed form while Eukarya DNA is highly condensed and packaged. 
A)  is circular while Eukarya is linear. 
B)  is diploid while Eukarya is haploid. 
C)  consist of several chromosomes while Eukarya has a single chromosome. 
D)  contains the base uracil while Eukarya has thymine in place of uracil. 
E)  is found in a non-condensed form while Eukarya DNA is highly condensed and packaged.

Question 4

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 5

Messenger RNA (mRNA)can best be described as a molecule that contains the code for a:

Accepted Answer

A)  protein. 
B)  polypeptide. 
C)  protein, rRNA or tRNA. 
D)  polypeptide, tRNA, or rRNA. 
E)  polypeptide or regulatory RNA. 
A)  protein. 
B)  polypeptide. 
C)  protein, rRNA or tRNA. 
D)  polypeptide, tRNA, or rRNA. 
E)  polypeptide or regulatory RNA.

Question 6

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 7

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 8

Which of these best differentiates DNA and RNA?

Accepted Answer

A)  RNA is single-stranded and DNA is double stranded. 
B)  RNA contains ribose and DNA contains deoxyribose. 
C)  RNA contains the base uracil in place of thymine, which is in DNA. 
D)  Both a and b are true. 
E)  a, b, and c are true. 
A)  RNA is single-stranded and DNA is double stranded. 
B)  RNA contains ribose and DNA contains deoxyribose. 
C)  RNA contains the base uracil in place of thymine, which is in DNA. 
D)  Both a and b are true. 
E)  a, b, and c are true.

Question 9

Basic proteins that help to package the DNA in eukaryal cells are called ________.

Accepted Answer

The answer of Basic proteins that help to package the...

Question 10

The Watson and Crick model showed that in the DNA molecule:

Accepted Answer

A)  purines paired with pyrimidines, and the strands align anti-parallel to one another. 
B)  purines paired with purines, and the strands align parallel to one another. 
C)  purines paired with purines, and the strands align anti-parallel to one another. 
D)  purines paired with pyrimidines, and the strands align parallel to one another. 
E)  pyrimidines paired with pyrimidines, and the strands align parallel to one another. 
A)  purines paired with pyrimidines, and the strands align anti-parallel to one another. 
B)  purines paired with purines, and the strands align parallel to one another. 
C)  purines paired with purines, and the strands align anti-parallel to one another. 
D)  purines paired with pyrimidines, and the strands align parallel to one another. 
E)  pyrimidines paired with pyrimidines, and the strands align parallel to one another.

Term for a special sequence at the end of the chromosome in eukaryal cells.

Transcription termination in eukaryal cells is more complex than in bacterial cells as the RNA molecule undergoes further processing before becoming a functional mRNA.Which of these BEST describes this processing?

The main difference between Bacteria and Archaea chromosomal DNA when compared to Eukarya chromosomal DNA,is that the Bacteria or Archaea chromosome usually:

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.

Messenger RNA (mRNA)can best be described as a molecule that contains the code for a:

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

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

Which of these best differentiates DNA and RNA?

Basic proteins that help to package the DNA in eukaryal cells are called ________.

The Watson and Crick model showed that in the DNA molecule:

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

Survival in the Host

Viral Pathogenesis

Eukaryal Microbe Pathogenesis

Control of Infectious Diseases

Filters

Exam 7: DNA Replication and Gene Expression

Term for a special sequence at the end of the chromosome in eukaryal cells.

Transcription termination in eukaryal cells is more complex than in bacterial cells as the RNA molecule undergoes further processing before becoming a functional mRNA.Which of these BEST describes this processing?

The main difference between Bacteria and Archaea chromosomal DNA when compared to Eukarya chromosomal DNA,is that the Bacteria or Archaea chromosome usually:

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.

Messenger RNA (mRNA)can best be described as a molecule that contains the code for a:

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

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

Which of these best differentiates DNA and RNA?

Basic proteins that help to package the DNA in eukaryal cells are called ________.

The Watson and Crick model showed that in the DNA molecule:

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

Survival in the Host

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.