Question 1

Which statement about RNA polymerase is NOT true?

Accepted Answer

A)  RNA polymerase adds a ribonucleotide to the 3' end of a growing RNA molecule.
B)  RNA polymerase binds to a promoter to initiate transcription.
C)  During transcription of a gene, RNA polymerase reads only one strand of DNA.
D)  RNA polymerase reads a template strand of DNA 5'to 3'.
E)  RNA polymerase has many subunits.F) B) and D)
G) A) and B)

Question 2

Compare rho-dependent and rho-independent transcription termination in terms of their use of RNA secondary structures.

Accepted Answer

(1)Rho-dependent transcription terminati...

Question 3

What is the function of eukaryotic RNA polymerase I?

Accepted Answer

A)  Transcription of rRNA genes
B)  Transcription of mRNA genes
C)  Transcription of tRNA genes
D)  Transcription of snRNAs
E)  Initiation of transcription (but not elongation) F) A) and B)
G) A) and D)

Question 4

Which of the following is found on the primary product of transcription but not on a mature mRNA molecule?

Accepted Answer

A)  Start codon
B)  Promoter
C)  Exons
D)  Introns
E)  Stop codonF) B) and E)
G) A) and D)

Question 5

In 1958, Francis Crick proposed that genes and their corresponding polypeptides are "colinear." Which of the following statements concerning the concept of colinearity is INCORRECT?

Accepted Answer

A)  Colinearity means that the linear nucleotide sequence of a given gene corresponds directly to the linear amino acid sequence in the corresponding polypeptide.
B)  The number of nucleotides in a gene should be precisely proportional to the number of amino acids present in the corresponding polypeptide.
C)  Colinearity generally holds true for the coding regions of prokaryotic viral genes.
D)  The vast majority of eukaryotic genes also follow the concept of colinearity although the size of genes may be larger.E) A) and C)
F) A) and B)

Question 6

If you were asked to isolate total RNA from two unknown samples and then were required to identify if the RNA was from prokaryotes or eukaryotes, what aspects regarding the classes of RNA present would help you distinguish one from the other?

Accepted Answer

RNA from prokaryotes will cont...

Question 7

During transcription, which parts of a DNA molecule are transcribed into RNA?

Accepted Answer

A)  All of the nucleotides in DNA on both strands
B)  All of the nucleotides on one strand of DNA
C)  Only parts of the DNA that encode mRNA
D)  Only regions of the DNA that contain genes
E)  Only regions of the DNA that encode rRNAF) B) and E)
G) A) and C)

Question 8

In eukaryotes, which RNA polymerase transcribes the genes that encode proteins?

Accepted Answer

A)  RNA polymerase I
B)  RNA polymerase II
C)  RNA polymerase III
D)  RNA polymerase IV
E)  RNA polymerase VF) C) and D)
G) A) and B)

Question 9

An in vitro transcription system that contains a bacterial gene does not initiate transcription.What is one possible problem?

Accepted Answer

A)  Histones that were on the DNA when it was isolated from E.coli are blocking access to the template.
B)  There is a mutation in the inverted repeat sequence that prevents a hairpin secondary structure from forming.
C)  There is a mutation at -10, where a promoter consensus sequence is located.
D)  Rho factor has not been added.
E)  TATA-binding protein (TBP) has not been added.F) D) and E)
G) B) and E)

Question 10

In your own words, list a comprehensive definition for "gene" at the molecular level.

Accepted Answer

A gene is a sequence of DNA, i...

Exam 10: From DNA to Proteins- Transcription and Rna Processing

What is the function of eukaryotic RNA polymerase I?

Correct Answer
verified

Compare rho-dependent and rho-independent transcription termination in terms of their use of RNA secondary structures.

Correct Answer
verified
(1)Rho-dependent transcription terminati...
View Answer

During transcription, which parts of a DNA molecule are transcribed into RNA?

Correct Answer
verified

Which of the following is found on the primary product of transcription but not on a mature mRNA molecule?

Correct Answer
verified

In your own words, list a comprehensive definition for "gene" at the molecular level.

Correct Answer
verified
A gene is a sequence of DNA, i...
View Answer

Which statement about RNA polymerase is NOT true?

Correct Answer
verified

In 1958, Francis Crick proposed that genes and their corresponding polypeptides are "colinear." Which of the following statements concerning the concept of colinearity is INCORRECT?

Correct Answer
verified

An in vitro transcription system that contains a bacterial gene does not initiate transcription.What is one possible problem?

Correct Answer
verified

In eukaryotes, which RNA polymerase transcribes the genes that encode proteins?

Correct Answer
verified

If you were asked to isolate total RNA from two unknown samples and then were required to identify if the RNA was from prokaryotes or eukaryotes, what aspects regarding the classes of RNA present would help you distinguish one from the other?

Correct Answer
verified
RNA from prokaryotes will cont...
View Answer

Exam 10: From DNA to Proteins- Transcription and Rna Processing

What is the function of eukaryotic RNA polymerase I?

Correct AnswerverifiedShow Answer

Compare rho-dependent and rho-independent transcription termination in terms of their use of RNA secondary structures.

Correct Answerverified(1)Rho-dependent transcription terminati...View AnswerShow Answer

During transcription, which parts of a DNA molecule are transcribed into RNA?

Correct AnswerverifiedShow Answer

Which of the following is found on the primary product of transcription but not on a mature mRNA molecule?

Correct AnswerverifiedShow Answer

In your own words, list a comprehensive definition for "gene" at the molecular level.

Correct AnswerverifiedA gene is a sequence of DNA, i...View AnswerShow Answer

Which statement about RNA polymerase is NOT true?

Correct AnswerverifiedShow Answer

In 1958, Francis Crick proposed that genes and their corresponding polypeptides are "colinear." Which of the following statements concerning the concept of colinearity is INCORRECT?

Correct AnswerverifiedShow Answer

An in vitro transcription system that contains a bacterial gene does not initiate transcription.What is one possible problem?

Correct AnswerverifiedShow Answer

In eukaryotes, which RNA polymerase transcribes the genes that encode proteins?

Correct AnswerverifiedShow Answer

If you were asked to isolate total RNA from two unknown samples and then were required to identify if the RNA was from prokaryotes or eukaryotes, what aspects regarding the classes of RNA present would help you distinguish one from the other?

Correct AnswerverifiedRNA from prokaryotes will cont...View AnswerShow Answer

Correct Answer
verified

Correct Answer
verified
(1)Rho-dependent transcription terminati...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A gene is a sequence of DNA, i...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
RNA from prokaryotes will cont...
View Answer