Question 1

For translation to take place,which of the following would NOT be required to be present?

Accepted Answer

A)  DNA
B)  mRNA
C)  tRNA amino acid complex
D)  rRNA
E)  ribosomeF) A) and B)
G) A) and C)

Question 2

Which level of primary control in eukaryotic gene activity involves processing early RNA transcripts to mRNA and control of the rate at which mRNA leaves the nucleus?

Accepted Answer

A)  feedback control
B)  translational control
C)  transcriptional control
D)  posttranscriptional control
E)  posttranslational controlF) A) and B)
G) None of the above

Question 3

Which of the following is NOT part of gene expression?

Accepted Answer

A)  transcription
B)  replication
C)  translation
D)  amino acids
E)  protein synthesisF) All of the above
G) A) and B)

Question 4

Which of the following will NOT assist you in protecting yourself from cancer?

Accepted Answer

A)  use of alcohol
B)  eating vitamin-rich foods
C)  reducing the amount of salt-cured and nitrate-cured foods
D)  reducing your weight
E)  regular exerciseF) B) and C)
G) A) and E)

Question 5

Which of the following levels of control involves the use of a poly-A tail?

Accepted Answer

A)  protein activity
B)  translation of mRNA
C)  mRNA processing
D)  transcriptional control
E)  chromatin structureF) B) and E)
G) B) and C)

Question 6

Segments of DNA that are NOT part of the gene are called

Accepted Answer

A)  exons.
B)  introns.
C)  transposons.
D)  inducers.
E)  promoters.F) A) and E)
G) D) and E)

Question 7

The function of transfer RNA is to

Accepted Answer

A)  carry amino acids to ribosomes.
B)  transfer nucleotides to the nucleus.
C)  transmit coded information to the cytoplasm.
D)  turn DNA on and off.
E)  act as the site for protein synthesis.F) C) and D)
G) A) and B)

Question 8

The fact that for a given species the amount of purines in the DNA always matches the number of pyrimidines was first determined by

Accepted Answer

A)  Watson and Crick.
B)  Franklin and Wilkins.
C)  Hershey and Chase.
D)  Chargaff.
E)  Mendel.F) B) and E)
G) A) and D)

Question 9

If the gene product needed is either transfer RNA or ribosomal RNA,the most efficient way to produce this product is

Accepted Answer

A)  activating chromatin.
B)  increasing transcription factors.
C)  increasing the rate mRNA matures.
D)  increasing translational control.
E)  increasing posttranscriptional control.F) None of the above
G) B) and D)

Question 10

Which of the following is NOT a frameshift mutation of the nucleotide sequence CATUAUCCC?

Accepted Answer

A)  CATTUAUCCC
B)  ATUAUCCC
C)  CTUAUCCC
D)  CATUAUCGC
E)  CCATUAUCCCF) A) and E)
G) A) and D)

Question 11

Prior to protein synthesis,the DNA

Accepted Answer

A)  attracts tRNAs with appropriate amino acids.
B)  serves as a template for the production of mRNA.
C)  adheres to ribosomes for protein synthesis.
D)  contains anticodons that become codons.
E)  must first undergo replication.F) A) and B)
G) A) and C)

Question 12

Which of the following is NOT true about cancer cells?

Accepted Answer

A)  They exhibit uncontrolled growth.
B)  They can form benign or malignant tumors.
C)  They exhibit disorganized growth.
D)  They exhibit contact inhibition.
E)  They may undergo metastasis.F) A) and B)
G) D) and E)

Question 13

Indicate the complementary nucleotide sequence for the following section of DNA: AATGCGTATACG

Accepted Answer

DNA forms a complementary sequence,which...

Question 14

Which is the process that synthesizes mRNA?

Accepted Answer

A)  translation
B)  transcription
C)  transposition
D)  transformation
E)  translocationF) C) and E)
G) B) and E)

Question 15

Which of the following is NOT true about oncogenes?

Accepted Answer

A)  They are normal genes that have undergone a mutation.
B)  They cause growth factors or growth factor receptors on a cell to malfunction.
C)  When mutated,oncogenes turn into proto-oncogenes.
D)  They cause a cell to divide repeatedly.
E)  They are not alien to the cell.F) A) and E)
G) A) and D)

Question 16

DNA segments called _____ are at the ends of chromosomes and as they shorten they eventually signal the cell to enter apoptosis.

Accepted Answer

A)  transposons
B)  mutagens
C)  activated chromatin
D)  operons
E)  telomeresF) A) and E)
G) None of the above

Question 17

When the sheep Dolly was successfully cloned,it was produced by growing an in vitro fertilized egg where the normal egg nucleus had been removed and replaced by a nucleus from an adult.Since this nucleus is from an old mature animal,we would expect it to ______.Interestingly,tests show that this did not happen,a fact that currently puzzles researchers.

Accepted Answer

A)  have additional Barr bodies
B)  be mutated
C)  have shorter telomeres
D)  have longer telomeres
E)  express transcription and translation more rapidlyF) None of the above
G) C) and D)

Question 18

Active genes are found in the _______ of eukaryotic chromosomes.

Accepted Answer

A)  heterochromatin
B)  euchromatin
C)  Barr bodies
D)  promoters
E)  operonsF) B) and C)
G) None of the above

Question 19

____________ bind to enhancers in eukaryotic cells to increase the rate of transcription.

Accepted Answer

A)  Repressors
B)  RNA polymerases
C)  Ligases
D)  Transcription activators
E)  DNA polymerasesF) All of the above
G) B) and D)

Question 20

Which of the following processes does NOT take place during translation?

Accepted Answer

A)  attachment of a ribosome to mRNA
B)  growth of a polypeptide chain
C)  binding of two tRNA molecules/ribosome
D)  liberation of polypeptide from ribosome
E)  production of mRNAF) A) and B)
G) D) and E)

Exam 25: Dna Structure and Control of Gene Expression

Which of the following is NOT true about cancer cells?

Correct Answer
verified

Which of the following is NOT part of gene expression?

Correct Answer
verified

Which of the following will NOT assist you in protecting yourself from cancer?

Correct Answer
verified

Correct Answer
verified

Segments of DNA that are NOT part of the gene are called

Correct Answer
verified

Which of the following is NOT a frameshift mutation of the nucleotide sequence CATUAUCCC?

Correct Answer
verified

____________ bind to enhancers in eukaryotic cells to increase the rate of transcription.

Correct Answer
verified

Active genes are found in the _______ of eukaryotic chromosomes.

Correct Answer
verified

For translation to take place,which of the following would NOT be required to be present?

Correct Answer
verified

The fact that for a given species the amount of purines in the DNA always matches the number of pyrimidines was first determined by

Correct Answer
verified

Which of the following processes does NOT take place during translation?

Correct Answer
verified

DNA segments called _____ are at the ends of chromosomes and as they shorten they eventually signal the cell to enter apoptosis.

Correct Answer
verified

Which level of primary control in eukaryotic gene activity involves processing early RNA transcripts to mRNA and control of the rate at which mRNA leaves the nucleus?

Correct Answer
verified

Prior to protein synthesis,the DNA

Correct Answer
verified

If the gene product needed is either transfer RNA or ribosomal RNA,the most efficient way to produce this product is

Correct Answer
verified

Which of the following is NOT true about oncogenes?

Correct Answer
verified

Indicate the complementary nucleotide sequence for the following section of DNA: AATGCGTATACG

Correct Answer
verified
DNA forms a complementary sequence,which...
View Answer

The function of transfer RNA is to

Correct Answer
verified

Which of the following levels of control involves the use of a poly-A tail?

Correct Answer
verified

Which is the process that synthesizes mRNA?

Correct Answer
verified

Exam 25: Dna Structure and Control of Gene Expression

Which of the following is NOT true about cancer cells?

Correct AnswerverifiedShow Answer

Which of the following is NOT part of gene expression?

Correct AnswerverifiedShow Answer

Which of the following will NOT assist you in protecting yourself from cancer?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Segments of DNA that are NOT part of the gene are called

Correct AnswerverifiedShow Answer

Which of the following is NOT a frameshift mutation of the nucleotide sequence CATUAUCCC?

Correct AnswerverifiedShow Answer

____________ bind to enhancers in eukaryotic cells to increase the rate of transcription.

Correct AnswerverifiedShow Answer

Active genes are found in the _______ of eukaryotic chromosomes.

Correct AnswerverifiedShow Answer

For translation to take place,which of the following would NOT be required to be present?

Correct AnswerverifiedShow Answer

The fact that for a given species the amount of purines in the DNA always matches the number of pyrimidines was first determined by

Correct AnswerverifiedShow Answer

Which of the following processes does NOT take place during translation?

Correct AnswerverifiedShow Answer

DNA segments called _____ are at the ends of chromosomes and as they shorten they eventually signal the cell to enter apoptosis.

Correct AnswerverifiedShow Answer

Which level of primary control in eukaryotic gene activity involves processing early RNA transcripts to mRNA and control of the rate at which mRNA leaves the nucleus?

Correct AnswerverifiedShow Answer

Prior to protein synthesis,the DNA

Correct AnswerverifiedShow Answer

If the gene product needed is either transfer RNA or ribosomal RNA,the most efficient way to produce this product is

Correct AnswerverifiedShow Answer

Which of the following is NOT true about oncogenes?

Correct AnswerverifiedShow Answer

Indicate the complementary nucleotide sequence for the following section of DNA: AATGCGTATACG

Correct AnswerverifiedDNA forms a complementary sequence,which...View AnswerShow Answer

The function of transfer RNA is to

Correct AnswerverifiedShow Answer

Which of the following levels of control involves the use of a poly-A tail?

Correct AnswerverifiedShow Answer

Which is the process that synthesizes mRNA?

Correct AnswerverifiedShow Answer

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DNA forms a complementary sequence,which...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
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