Viruses
Viruses is a Science & Technology concept from the MPSC syllabus, tested in 2 past MPSC questions (2014, 2022). Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.
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Real questions that test this
विषाणू (व्हायरस) ______ असतात. / Viruses are :
Viruses are obligate intracellular parasites, meaning they are non-cellular infectious agents that can replicate only inside the living cells of organisms.
व्हायराईड्स खालीलपैकी कोणत्या तीन विशेष गुणधर्माद्वारे ओळखल्या जातात ? / Viroids are identified on the basis of which of the following three characteristic features?
(a)विषाणूपेक्षा आकाराने बरेच लहान असणे / Much smaller in size than viruses
(b)गोलाकार रायबोन्यूक्लिक ॲसिड (RNA) रेणू ने बनलेले / Consist of circular RNA molecule
(c)RNA रेणू प्रबीन (प्रोटिन) आवरणाने आच्छादित असणे / RNA molecule covered by protein coat
(d)पादप पेशी (वनस्पती पेशी) संक्रमित करणे / Infect the plant cells
Viroids are infectious agents that are much smaller than viruses, consist of a short circular single-stranded RNA molecule, and infect plant cells. Unlike viruses, they lack a protein coat (capsid).