Science & Tech

5 questions

• 2022 · Question 37 · Biology

  Consider the following statements : 1. Biofilms can form on medical implants within human tissues. 2. Biofilms can form on food and food processing surfaces. 3. Biofilms can exhibit antibiotic resistance. Which of the statements given above are correct ?

  Choose your answer

  (a)1 and 2 only(b)2 and 3 only(c)1 and 3 only(d)1, 2 and 3

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  Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)

• 2022 · Question 38 · Biology

  Consider the following statements in respect of probiotics : 1. Probiotics are made of both bacteria and yeast. 2. The organisms in probiotics are found in foods we ingest but they do not naturally occur in our gut. 3. Probiotics help in the digestion of milk sugars. Which of the statements given above is/are correct ?

  Choose your answer

  (a)1 only(b)2 only(c)1 and 3(d)2 and 3

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  Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)

• 2022 · Question 39 · Biology

  In the context of vaccines manufactured to prevent COVID-19 pandemic, consider the following statements : 1. The Serum Institute of India produced COVID-19 vaccine named Covishield using mRNA platform. 2. Sputnik V vaccine is manufactured using vector based platform. 3. COVAXIN is an inactivated pathogen based vaccine. Which of the statements given above are correct ?

  Choose your answer

  (a)1 and 2 only(b)2 and 3 only(c)1 and 3 only(d)1, 2 and 3

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  Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)

• 2022 · Question 48 · Biology

  Which of the following are nitrogen-fixing plants ? 1. Alfalfa 2. Amaranth 3. Chickpea 4. Clover 5. Purslane (Kulfa) 6. Spinach Select the correct answer using the code given below :

  Choose your answer

  (a)1, 3 and 4 only(b)1, 3, 5 and 6 only(c)2, 4, 5 and 6 only(d)1, 2, 4, 5 and 6

  Show answer

  Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)

• 2022 · Question 97 · Biology

  Which one of the following statements best describes the role of B cells and T cells in the human body ?

  Choose your answer

  (a)They protect the body from environmental allergens.(b)They alleviate the body’s pain and inflammation.(c)They act as immunosuppressants in the body.(d)They protect the body from the diseases caused by pathogens.

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  Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)