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Prelims

UPSC Prelims Questions

Practice UPSC Prelims MCQs by subject and year. Free questions with explanations for focused revision.

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Q.6823·Miscellaneous·2019·Easy

In a study, scientists compared the microbiomes of poorly nourished and well nourished infants and young children. Gut microbes were isolated from faecal samples of malnourished and healthy children. The microbiome was "immature" and less diverse in malnourished children compared to the better developed "mature" microbiome found in healthy children of the same age. According to some studies, the chemical composition of mother's milk has shown the presence of a modified sugar (sialylated oligosaccharides). This is not utilized by the baby for its own nutrition. However, the bacteria constituting the infant's microbiome thrive on this sugar which serves as their food. Malnourished mothers have low levels of this sugar in their milk. Consequently, the microbiomes of their infants fail to mature. That in turn, leads to malnourished babies. Which one of the following is the most logical, rational and crucial inference that can be derived from the above passage ?

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Q.6824·Miscellaneous·2019·Easy

An 8-digit number 4252746B leaves remainder 0 when divided by 3. How many values of B are possible?

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Q.6825·Miscellaneous·2019·Easy

If F stands second in the ranking, then the position of B is

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Q.6826·Miscellaneous·2019·Easy

If every alternative letter of the English alphabet from B onwards (including B) is written in lower case (small letters) and the remaining letters are capitalized, then how is the first month of the second half of the year written?

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Q.6827·Miscellaneous·2019·Easy

In a study, scientists compared the microbiomes of poorly nourished and well nourished infants and young children. Gut microbes were isolated from faecal samples of malnourished and healthy children. The microbiome was "immature" and less diverse in malnourished children compared to the better developed "mature" microbiome found in healthy children of the same age. According to some studies, the chemical composition of mother's milk has shown the presence of a modified sugar (sialylated oligosaccharides). This is not utilized by the baby for its own nutrition. However, the bacteria constituting the infant's microbiome thrive on this sugar which serves as their food. Malnourished mothers have low levels of this sugar in their milk. Consequently, the microbiomes of their infants fail to mature. That in turn, leads to malnourished babies. On the basis of the above passage, the following assumptions have been made : Processed probiotic foods are a solution to treat the children suffering from malnutrition due to immature gut bacteria composition. The babies of malnourished mothers generally tend to be' malnourished. Which of the above assumptions is/are valid? Which of the above assumptions is/are valid ?

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Q.6828·Miscellaneous·2019·Medium

In the context of polity, which one of the following would you accept as the most appropriate definition of liberty?

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Q.6829·Miscellaneous·2018·Easy

The solution of which one of the following will have pH less than 7?

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Q.6830·Miscellaneous·2018·Easy

Dr. Bindeshwar Pathak, who was awarded Nikkei Asia Prize, 2018 for Culture and Community, is the founder of

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Q.6831·Miscellaneous·2018·Easy

Article 352 of the Constitution of India contains provisions related to

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Q.6832·Miscellaneous·2018·Easy

The Theosophical Society was led by

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Q.6833·Miscellaneous·2018·Easy

Which one of the following statements about Bipin Chandra Pal is correct?

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Q.6834·Miscellaneous·2018·Easy

Consider the following statements: 1. If 10 is added to each entry on a list, then the average increases by 10. 2.If 10 is added to each entry on a list, then the standard deviation increases by 10. 3. If each entry on a list is doubled, then the average doubles. Which of the above statements are correct?

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Q.6835·Miscellaneous·2018·Easy

Which one of the following is an oxidation-reduction reaction?

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Q.6836·Miscellaneous·2018·Easy

The variance of 25 observations is 4. If 2 is added to each observation, then the new variance of the resulting observations is

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Q.6837·Miscellaneous·2018·Easy

Which one of the following is not used as fertilizer?

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Q.6838·Miscellaneous·2018·Easy

If xi > 0, yi > 0 (i = 1, 2, 3, …, n) are the values of two variables X and Y with geometric means P and Q respectively, then the geometric mean of (xi/yi) is

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Q.6839·Miscellaneous·2018·Easy

Which one of the following is the chemical formula of gypsum?

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Q.6840·Miscellaneous·2018·Easy

If the probability of simultaneous occurrence of two events A and B is p and the probability that exactly one of A, B occurs is q, then which of the following is/are correct? 1.P(A ∪ B + P(Ā ∩ B̄) = 2 – 2p – q 2.P(Ā ∩ B̄) = 1 – p – q Select the correct answer using the code given below:

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