COVID-19 QUESTIONS WITH ACCURATE
ANSWERS
-To which host cell surface receptor does the Spike protein bind?
-Where are these cell receptors located in humans?
-How does this explain the diversity of signs and symptoms people experience when suffering from
Covid-19 infections? correct answer -Protein called ACE2 (enzyme that reduces BP)
-found in lungs, heart, blood vessels
-Depending on where and which tissues the spikes attach to, you could have a variety of symptoms like
respiratory failure, heart failure, arrythmia, vascular inflammation, and more
-Which special enzyme would copy the Covid-19 RNA within a human cell?
-Do human cells have genes for this enzyme?
-Must the Covid-19 virus carry the genetic info for this enzyme?
-Does this enzyme proofread/edit? Consequences? correct answer RNA dependent RNA polymerase; no;
yes; Many mutations
Are coronaviruses RNA or DNA viruses? correct answer RNA viruses
Are they naked or enveloped? correct answer enveloped
Can our vaccines still protect us from this variant, so far? correct answer YES
Describe the probe/reporter used in the UK Thermo TaqPath COVID-19 RT- PCR? How is fluorescence
used in this test? correct answer -Developed 3 probes that bind to different spots of the viral genome
with three different colors.
-Once all three surpass the threshold, the test is positive.
-Lower the Ct value means more virus.
