Question 1

Like retroviruses,the genome of hepatitis B virus is integrated into the genome of the host cell.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following describes an interesting feature of the preC and pregenomic mRNAs produced by the hepatitis B virus?

Accepted Answer

A)  They are extensively spliced to produce a set of nested mRNAs.
B)  They are transcribed by the cellular RNA polymerase III enzyme.
C)  They are produced by the reverse transcriptase enzyme.
D)  They are transcribed past a polyadenylation site near the promoter.
E)  They each code for several proteins due to the use of alternative start codons.F) B) and C)
G) A) and D)

Question 3

Hepatitis B is usually transmitted via the oral-fecal route.

Accepted Answer

A) True 
 B)False

Question 4

The unusual structure of the of the hepatitis B virus genome found in the virion is a result of the mechanism used to replicate the genome.

Accepted Answer

A) True 
 B)False

Question 5

It is recommended that people in certain professions or with certain disease should receive the hepatitis B vaccine.For which of the following individuals would it NOT be critical for them to be vaccinated against hepatitis B?

Accepted Answer

A)  Zoo keeper
B)  Nurse
C)  Tattoo-parlor worker
D)  Barber
E)  HemophiliacF) B) and C)
G) A) and E)

Question 6

Like retroviruses,hepatitis B virus (HBV) uses a reverse transcription step.Which of the following distinguishes HBV from the retroviruses?

Accepted Answer

A)  HBV has an enveloped virion.
B)  HBV packages a DNA genome in the virion.
C)  HBV packages reverse transcriptase enzyme in the virion.
D)  HBV fuses its envelope with the cellular plasma membrane.
E)  All of the above distinguish HBV from retroviruses.F) A) and E)
G) A) and D)

Question 7

Scientists are currently testing an edible vaccine for hepatitis B virus by engineering the antigens into bananas.

Accepted Answer

A) True 
 B)False

Question 8

The X protein from hepatitis B virus is thought to activate gene transcription because it is found in the nucleus of infected cells.

Accepted Answer

A) True 
 B)False

Exam 30: Hepadnaviruses

The X protein from hepatitis B virus is thought to activate gene transcription because it is found in the nucleus of infected cells.

Correct Answer
verified

Like retroviruses,hepatitis B virus (HBV) uses a reverse transcription step.Which of the following distinguishes HBV from the retroviruses?

Correct Answer
verified

Hepatitis B is usually transmitted via the oral-fecal route.

Correct Answer
verified

Scientists are currently testing an edible vaccine for hepatitis B virus by engineering the antigens into bananas.

Correct Answer
verified

The unusual structure of the of the hepatitis B virus genome found in the virion is a result of the mechanism used to replicate the genome.

Correct Answer
verified

It is recommended that people in certain professions or with certain disease should receive the hepatitis B vaccine.For which of the following individuals would it NOT be critical for them to be vaccinated against hepatitis B?

Correct Answer
verified

Like retroviruses,the genome of hepatitis B virus is integrated into the genome of the host cell.

Correct Answer
verified

Which of the following describes an interesting feature of the preC and pregenomic mRNAs produced by the hepatitis B virus?

Correct Answer
verified

Exam 30: Hepadnaviruses

The X protein from hepatitis B virus is thought to activate gene transcription because it is found in the nucleus of infected cells.

Correct AnswerverifiedShow Answer

Like retroviruses,hepatitis B virus (HBV) uses a reverse transcription step.Which of the following distinguishes HBV from the retroviruses?

Correct AnswerverifiedShow Answer

Hepatitis B is usually transmitted via the oral-fecal route.

Correct AnswerverifiedShow Answer

Scientists are currently testing an edible vaccine for hepatitis B virus by engineering the antigens into bananas.

Correct AnswerverifiedShow Answer

The unusual structure of the of the hepatitis B virus genome found in the virion is a result of the mechanism used to replicate the genome.

Correct AnswerverifiedShow Answer

It is recommended that people in certain professions or with certain disease should receive the hepatitis B vaccine.For which of the following individuals would it NOT be critical for them to be vaccinated against hepatitis B?

Correct AnswerverifiedShow Answer

Like retroviruses,the genome of hepatitis B virus is integrated into the genome of the host cell.

Correct AnswerverifiedShow Answer

Which of the following describes an interesting feature of the preC and pregenomic mRNAs produced by the hepatitis B virus?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified