#1
Which type of virus uses reverse transcriptase to convert its RNA genome into DNA?
Retrovirus
Adenovirus
Herpesvirus
Influenza virus
#2
Which of the following is an antiretroviral drug that inhibits reverse transcriptase activity?
Azithromycin
Acyclovir
Zidovudine
Amoxicillin
#3
Which of the following viruses does NOT utilize reverse transcriptase during its replication?
Human T-lymphotropic virus (HTLV)
Hepatitis C virus (HCV)
Human immunodeficiency virus (HIV)
Hepatitis B virus (HBV)
#4
Which of the following is a characteristic feature of reverse transcriptase?
It requires a primer for its activity
It only functions in eukaryotic cells
It synthesizes RNA from a DNA template
It is sensitive to high temperatures
#5
What is the significance of reverse transcriptase activity in the life cycle of telomerase?
It helps in the repair of telomeric DNA
It synthesizes telomeric DNA from an RNA template
It promotes telomere shortening
It mediates telomere attachment to the nuclear membrane
#6
What is the primary function of reverse transcriptase in retroviruses?
Replication of RNA
Replication of DNA
Conversion of RNA to DNA
Conversion of DNA to RNA
#7
Which enzyme is responsible for the synthesis of a complementary DNA strand from an RNA template?
RNA polymerase
DNA polymerase
Reverse transcriptase
Ligase
#8
Which viral enzyme is targeted by nucleoside/nucleotide reverse transcriptase inhibitors (NRTIs)?
Protease
Integrase
RNA polymerase
Reverse transcriptase
#9
How does HIV utilize reverse transcriptase during its replication cycle?
To synthesize viral RNA
To integrate viral DNA into the host genome
To produce viral proteins
To convert viral RNA into DNA
#10
What is the function of the ribonuclease H (RNase H) domain of reverse transcriptase?
To degrade RNA in the RNA-DNA hybrid
To synthesize DNA from an RNA template
To repair DNA damage
To integrate viral DNA into the host genome
#11
Which of the following is NOT a characteristic of reverse transcriptase?
High error rate
RNA-dependent DNA polymerase activity
Exonuclease activity
No proofreading capability
#12
What is the significance of reverse transcriptase in molecular biology research?
It allows the amplification of specific DNA sequences through PCR
It enables the synthesis of cDNA from mRNA for gene expression studies
It plays a role in the repair of DNA damage
It catalyzes the reverse transcription of DNA to RNA
#13
Which step of the viral life cycle is directly inhibited by non-nucleoside reverse transcriptase inhibitors (NNRTIs)?
Entry
Integration
Transcription
Reverse transcription
#14
What is the significance of reverse transcriptase inhibitors in the treatment of hepatitis B virus (HBV) infection?
They prevent the assembly of viral particles
They inhibit the viral DNA polymerase
They block the release of mature virions
They disrupt viral entry into host cells
#15
Which class of reverse transcriptase inhibitors binds allosterically to the enzyme and induces conformational changes?
Nucleoside/nucleotide reverse transcriptase inhibitors (NRTIs)
Non-nucleoside reverse transcriptase inhibitors (NNRTIs)
Integrase inhibitors
Protease inhibitors