Homework Answers
Question 50: The correct answer is E. rotavirus.
Explanation: Rotavirus has the capped but nonpolyadenylated mRNAs. Therefore the production of proteins from mRNA (i.e. the translation process) occurs differently in rotavirus.
Question 51: The correct answer is E. allows ribosomes to initiate translation without a cap group.
Explanation: IRES stands for Internal Ribosome Entry Site. It is an RNA element and its function is to allow ribosomes to initiate cap-independent translation.
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QUESTION 50 The mRNAs of which of the following viruses lack a poly (A) tail: O...
QUESTION 2 The UUUUUUA sequence at the terminus of the gas genes of HIV causes which...
QUESTION 2 The UUUUUUA sequence at the terminus of the gas genes of HIV causes which of the following to occur. A makes the RNA resistant to RNase H B. allows ribosomes to initiate translation without a cap group OC allows DNA synthesis without a primer OD. causes ribosomes to stutter and frameshift E. causes RNA-dependent RNA polymerase to stutter QUESTION 3 Which of the following viruses maintains a very small genome by overlapping All of its genes: A rabies...
QUESTION 12 The UUUUUUU sequence at the terminus of each gene of the rabiesvirus genome causes...
QUESTION 12 The UUUUUUU sequence at the terminus of each gene of the rabiesvirus genome causes which of the following to occur O A allows DNA synthesis without a primer B. causes RNA-dependent RNA polymerase to stutter OC makes the RNA resistant to RNase H D. allows ribosomes to initiate translation without a cap group E. causes ribosomes to stutter and frameshift QUESTION 13 Poxvirus obtains its innermost membrane from: A. vesicles between the rough endoplasmic reticulum and the Golgi...
QUESTION 99 Which of the following occurs during "leaky scanning: A. the ribosome will bind even...
QUESTION 99 Which of the following occurs during "leaky scanning: A. the ribosome will bind even in the absence of a cap group OB. the cell begins to rapidly lose fluids OC. the ribosome skips at least one AUG and begins at a subsequent AUG downstream D.ribosomes begin to stutter at a UUUUUUU sequence O E. RNA-dependent RNA polymerase begins to stutter at a UUUUUUU sequence QUESTION 100 Transcription and genome replication occur inside the capsid for which of the...
QUESTION 6 The poly (A) tall on the mRNA of herpes simplex virus is generated by...
QUESTION 6 The poly (A) tall on the mRNA of herpes simplex virus is generated by which of the following mechanisms: A. added by the polyadenylation enzyme of the virus B. stealing it from the host mRNAs OC. poliovirus mRNA does not have a poly (A) tail D.added by the polyadenylation enzymes of the host cell E. encoded in the genome QUESTION 7 The poly (A) tail on the mRNA of influenza virus is generated by which of the following...
QUESTION 39 The poly (A) tall on the mRNA of poliovirus is generated by which of...
QUESTION 39 The poly (A) tall on the mRNA of poliovirus is generated by which of the following mechanisms: A encoded in the genome B. a run of UUUUUUU causes the RNA-dependent RNA polymerase to stutter oc. added by the polyadenylation enzymes of the host cell D. stealing it from the host cell E poliovirus mRNAs do not have a poly (A) tail QUESTION 40 Eukaryotic ribosomes cannot translate polycistronic mRNAs. Poliovirus utilizes which of the following strategies to solve...
QUESTION 55 A run of highly hydrophobic amino acids at the beginning of a eukaryotic cell...
QUESTION 55 A run of highly hydrophobic amino acids at the beginning of a eukaryotic cell protein indicates: O A. an indicator for the ribosome to remain free OB. a signal sequence OC. af a fusion sequence D. an attachment sequence for transport by microtubules E. a nuclear localization signal QUESTION 56 Which of the following viruses is the cause of cervical and oral cancer and warts: A rabies virus B. human herpes 8 virus C. rotavirus OD.Epstein-Barr virus E....
QUESTION 35 Eukaryotic ribosomes cannot translate polycistronic mRNAs, Parvovirus utilizes which of the following strategies to...
QUESTION 35 Eukaryotic ribosomes cannot translate polycistronic mRNAs, Parvovirus utilizes which of the following strategies to solve the "polycstrone RNA problem: A parvovirus is not polycstronic B. alternative splicing OC segmented genome OD. protease cleavage of a polyprotein O E multiple IRES QUESTION 36 During hepatitis B virus maturation, which of the following happens to the vesicles studded with spike proteins if they do not encounter a capsid: A they re-enter the nucleus B. they are inserted into the plasma...
QUESTION 26 The original precursor of viruses is unknown. Which of the following is types of...
QUESTION 26 The original precursor of viruses is unknown. Which of the following is types of virus genomes might a catalytic RNA be a hypothetical candidate precursor: O A double-stranded DNA OB. single-stranded DNA OC.plus-strand RNA OD. minus-strand RNA E. double-stranded RNA QUESTION 27 The final envelope on the progeny virion of herpes simplex virus that exits an infected cell is derived from: A the outer nuclear membrane OB. the endoplasmic reticulum C.the plasma membrane D.a Golgi complex vesicle OE....
Question 14 Which of the following is a feature common to BOTH prokaryotes and eukaryotes? The...
Question 14 Which of the following is a feature common to BOTH prokaryotes and eukaryotes? The use of nucleosomes to condense DNA in the nucleus. The ability to translate an RNA before its transcription is complete. The ability to have multiple ribosomes on a single RNA for more efficient translation. The ability to start transcription at a 5'AUG sequence. o Question 15 A particular prokaryotic promoter contains only the region from-10 to-35. Which of the following is true? The RNA...
QUESTION 61 Which of the following is the reason for the linear replication problem? O A....
QUESTION 61 Which of the following is the reason for the linear replication problem? O A. The lagging strand must be synthesized in small pieces. B. The RNA primer cannot be replaced on the 5' ends of a newly synthesized linear molecule. OC. The RNA primer cannot be replaced on the 3' ends of a newly synthesized linear molecule. D. DNA polymerase stops before finishing synthesis of the 3' ends of a newly synthesize linear molecule. OE. DNA polymerase stops...
QUESTION 2 The UUUUUUA sequence at the terminus of the gas genes of HIV causes which of the following to occur. A makes the RNA resistant to RNase H B. allows ribosomes to initiate translation without a cap group OC allows DNA synthesis without a primer OD. causes ribosomes to stutter and frameshift E. causes RNA-dependent RNA polymerase to stutter QUESTION 3 Which of the following viruses maintains a very small genome by overlapping All of its genes: A rabies...
QUESTION 12 The UUUUUUU sequence at the terminus of each gene of the rabiesvirus genome causes which of the following to occur O A allows DNA synthesis without a primer B. causes RNA-dependent RNA polymerase to stutter OC makes the RNA resistant to RNase H D. allows ribosomes to initiate translation without a cap group E. causes ribosomes to stutter and frameshift QUESTION 13 Poxvirus obtains its innermost membrane from: A. vesicles between the rough endoplasmic reticulum and the Golgi...
QUESTION 99 Which of the following occurs during "leaky scanning: A. the ribosome will bind even in the absence of a cap group OB. the cell begins to rapidly lose fluids OC. the ribosome skips at least one AUG and begins at a subsequent AUG downstream D.ribosomes begin to stutter at a UUUUUUU sequence O E. RNA-dependent RNA polymerase begins to stutter at a UUUUUUU sequence QUESTION 100 Transcription and genome replication occur inside the capsid for which of the...
QUESTION 6 The poly (A) tall on the mRNA of herpes simplex virus is generated by which of the following mechanisms: A. added by the polyadenylation enzyme of the virus B. stealing it from the host mRNAs OC. poliovirus mRNA does not have a poly (A) tail D.added by the polyadenylation enzymes of the host cell E. encoded in the genome QUESTION 7 The poly (A) tail on the mRNA of influenza virus is generated by which of the following...
QUESTION 39 The poly (A) tall on the mRNA of poliovirus is generated by which of the following mechanisms: A encoded in the genome B. a run of UUUUUUU causes the RNA-dependent RNA polymerase to stutter oc. added by the polyadenylation enzymes of the host cell D. stealing it from the host cell E poliovirus mRNAs do not have a poly (A) tail QUESTION 40 Eukaryotic ribosomes cannot translate polycistronic mRNAs. Poliovirus utilizes which of the following strategies to solve...
QUESTION 55 A run of highly hydrophobic amino acids at the beginning of a eukaryotic cell protein indicates: O A. an indicator for the ribosome to remain free OB. a signal sequence OC. af a fusion sequence D. an attachment sequence for transport by microtubules E. a nuclear localization signal QUESTION 56 Which of the following viruses is the cause of cervical and oral cancer and warts: A rabies virus B. human herpes 8 virus C. rotavirus OD.Epstein-Barr virus E....
QUESTION 35 Eukaryotic ribosomes cannot translate polycistronic mRNAs, Parvovirus utilizes which of the following strategies to solve the "polycstrone RNA problem: A parvovirus is not polycstronic B. alternative splicing OC segmented genome OD. protease cleavage of a polyprotein O E multiple IRES QUESTION 36 During hepatitis B virus maturation, which of the following happens to the vesicles studded with spike proteins if they do not encounter a capsid: A they re-enter the nucleus B. they are inserted into the plasma...
QUESTION 26 The original precursor of viruses is unknown. Which of the following is types of virus genomes might a catalytic RNA be a hypothetical candidate precursor: O A double-stranded DNA OB. single-stranded DNA OC.plus-strand RNA OD. minus-strand RNA E. double-stranded RNA QUESTION 27 The final envelope on the progeny virion of herpes simplex virus that exits an infected cell is derived from: A the outer nuclear membrane OB. the endoplasmic reticulum C.the plasma membrane D.a Golgi complex vesicle OE....
Question 14 Which of the following is a feature common to BOTH prokaryotes and eukaryotes? The use of nucleosomes to condense DNA in the nucleus. The ability to translate an RNA before its transcription is complete. The ability to have multiple ribosomes on a single RNA for more efficient translation. The ability to start transcription at a 5'AUG sequence. o Question 15 A particular prokaryotic promoter contains only the region from-10 to-35. Which of the following is true? The RNA...
QUESTION 61 Which of the following is the reason for the linear replication problem? O A. The lagging strand must be synthesized in small pieces. B. The RNA primer cannot be replaced on the 5' ends of a newly synthesized linear molecule. OC. The RNA primer cannot be replaced on the 3' ends of a newly synthesized linear molecule. D. DNA polymerase stops before finishing synthesis of the 3' ends of a newly synthesize linear molecule. OE. DNA polymerase stops...
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