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BIOCHEM 2B03

Total questions: 6

Worksheet time: 4mins

Name
Class
Date
1.

COVID-19 is...

a)

a positive, single-stranded, linear, and non-segmented RNA sequence

b)

a negative, double-stranded, circular, and segmented DNA sequence

c)

a positive, single-stranded, linear, circular, and non-segmented RNA sequence

d)

a negative, single-stranded, circular, and segmented DNA sequence

2.

Among the most impactful SARS-CoV-2 variants was the ẟ (delta) variant, which was discovered in ________________. Multiple ____________ have impacted its potency to spread and replicate.

a)

Indonesia in October 2020; point mutations

b)

India in October 2020; nonsense mutations

c)

Indonesia in October 2021; nonsense mutations

d)

India in October 2020; missense mutations

3.

Omicron carries a high number of mutations in the variant's _________. The significance of the mutations being _____________ heeds the characteristics of the Omicron VOC, in which they alter the structure and thus increasing stability of the SARS-CoV-2 variant.

a)

enveloped membrane; localized in the glycoproteins

b)

spike glycoproteins; delocalized in the glycoproteins

c)

spike glycoproteins; localized in the glycoproteins

d)

protein MSHM; phosphorylated

4.

How many structural proteins does COVID-19 have?

a)

3

b)

4

c)

5

d)

6

5.

The Q493R Mutation...

a)

All of the options

b)

Increase interaction with ACE2

c)

Enhances identification of ACE2 for binding

d)

Increase affinity to negative residues of ACE2

6.

Research,

Development,

Testing, Review,

Distribution,

Public compliance, and

Extending overall vaccine rollout are ways to improve vaccine development

a)

True

b)

False