Current Affairs MCQ for UPSC Exams - 02 November 2022

Q.1) Consider the following statements about‘nucleic acid vaccines’:

1. It uses genetic material from a diseasecausing pathogen to stimulate an immuneresponse against it.
2. Such vaccines uses only RNA of thepathogen for making a specific protein totrigger immune response from the humanbody.
3. There are no live components in thesevaccines.
Which of the statements given above is/are correct?
(a) 1, 2 and 3 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 2 only

Q.2) The term ‘metaverse’ was recently in newsin the context of:

a) A secure digital communication networkbased on quantum mechanics.
b) A network of always-on virtualenvironments in which people can interact.
c) The waves of dark particles recently foundemanating from a black hole.
d) A revolutionary method to counter thespread of zoonotic diseases like COVID-19.

Q.3) In the context of environment and ecology,consider the following statements:

1. Keystone species can be an animal, plant ormicroorganism.
2. The Great Indian Bustard is an indicatorspecies of the grasslands.
3. Umbrella species help in the selection and inthe determination of the composition of Protected areas.
Which of the statements given above is/are correct?
(a) 1 and 3 only
(b) 2 and 3 only
(c) 1, 2 and 3 only
(d) 2 only

Q.4) World Cities Day 2022 is observed on

(a) 31st Dec
(b) 31st Oct
(c) 2nd March
(d) 25th April

Q.5) With reference to the primary andsecondary succession, consider the followingstatements:

1. Primary succession occurs when a new siteis colonized by living species whilesecondary succession occurs after thecomplete destruction of existingcommunity.
2. The rate of primary succession is relativelyfaster than secondary succession.
Which of the statements given above is/are correct?
(a) Neither 1 nor 2
(b) Both 1 and 2
(c) 1 only
(d) 2 only