Which error prone enzyme leads to increased mutation rates in
RNA viruses?
DNA dependent DNA polymerase
RNA dependent RNA polymerase
DNA dependent RNA polymerase
RNA dependent DNA polymerase
Antigenic drift permits viruses to evade which host defense?
Innate
Adaptive
Interferon
All of the above
None of the above
Antigenic drift can lead to vaccine resistance?
Correct
Incorrect
Is antigenic drift a normal evolutionary process for viruses?
Yes
No
Which of the following enzymes are commonly found within viral
capsids???
A.)
DNA-dependent RNA polymerase
B.)
RNA-dependent RNA polymerase
C.)
Reverse Transcriptase
D.)
Telomerase
E.)
a, b and c
Coronavirus has the enzyme __________
(A. Reverse Transcriptase, B. Replicase, C.DNA polymerase, D.
RNA polymerase),
which is a ______________
(A. RNA Dependent DNA Polymerase, B. DNA Dependent DNA
Polymerase, C. DNA Dependent RNA Polymerase, RNA Dependent RNA
Polymerase.
This allows it to make new copies of its genetic material.
The polymerase that synthesizes which of the following molecules
uses RNA as a template and synthesizes new stands from 5' to
3'?
1. Neither RNA polymerase nor DNA polymerase
2. both RNA polymerase and DNA polymerase
3. DNA polymerase only
4. RNA polymerase only
Cellular RNA polymerase cannot transcribe anRNA
template. So, where does the RNA polymerase activity come from in
the case of:
A ssRNA virus with a + sense genome?
A ssRNA virus with a – sense genome?
6. Compare the
structure and function of a typical DNA polymerase and a typical
RNA polymerase.7. What are the
post-transcriptional modifications that the pre-mRNA is subjected
to in eukaryotes? Explain by giving the role(s) of each
modification.8. Highlight the
general characteristics of a mature mRNA in comparison with rRNA or
tRNA