SawaalBoxसवाल बॉक्स
2002 · Q134Science & TechnologyHealth & Diseaseseasy

Which one of the following statements is correct?

  1. (a)Prions are the smallest free-living cells
  2. (b)The cell wall of Mycoplasmas is made up of amino sugars
  3. (c)Viroids consist of a single-stranded RNA molecule
  4. (d)Rickettsia’s lack cell wall
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Official answer(c) Viroids consist of a single-stranded RNA molecule

2022 · Q39Science & TechnologyHealth & Diseasesmoderate

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 ?

  1. (a)1 and 2 only
  2. (b)2 and 3 only
  3. (c)1 and 3 only
  4. (d)1, 2 and 3
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Official answer(b) 2 and 3 only