July 3, 2021 - Daily Quiz
1. Plasmids are little pieces of
(a) m RNA
(b) r RNA
(c) s RNA
(d) DNA
2. Consider the following.
1. The mRNA is an RNA version of the gene that leaves the cell nucleus and moves to the cytoplasm where proteins are made.
2. mRNA is a single-stranded RNA molecule.
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
3.Consider the following.
1. mRNA has a long half-life.
2. The mRNA cannot affect a person’s DNA.
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
4. What is the role of CaS 9 in CRISPR-Cas9 system?.
(a) to cut the two strands of DNA
(b) to fuse the two strands of DNA
(c) to find and bind to a specific sequence in the DNA.
(d) to create a change in a gene
5. Consider the following.
1. Coronaviruses can only translate and not transcribe.
2. Coronavirus has a genetic material encased in a layer of fat called the lipid envelop.
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Answers
1-(d)
https://www.nature.com/scitable/definition/plasmid-plasmids-28#:~:text=A%20plasmid%20is%20a%20small,advantages%2C%20such%20as%20antibiotic%20resistance.
https://www.news18.com/news/opinion/zycov-d-decoding-the-science-behind-indias-plasmid-dna-vaccine-what-makes-it-special-3919229.html
2-(c)
https://www.modernatx.com/mrna-technology/science-and-fundamentals-mrna-technology
https://www.cdc.gov/coronavirus/2019-ncov/vaccines/different-vaccines/mrna.html
3-(b)
https://www.reuters.com/article/factcheck-mrna-megamix-idUSL1N2M61HW
4-(a)
https://www.livescience.com/58790-crispr-explained.html
5-(c)
https://www.thehindu.com/sci-tech/health/coronavirus-what-are-variants-of-concern/article34459081.ece
https://www.thehindu.com/sci-tech/science/how-does-soap-use-help-in-tackling-covid-19/article31070630.ece
https://www.thehindu.com/sci-tech/health/the-hindu-explains-what-is-emergency-use-authorisation-for-drugs-and-vaccines/article33316687.ece
https://www.thehindu.com/sci-tech/science/the-covid-19-virus-and-its-polyproteins/article31375823.ece
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