Q.53
Asfarviruses characteristically are:
(A) . Enveloped with small-sized (20nm) virions
(B) . Very resistant to a wide range of pH
(C) . Having a single molecule of linear double-stranded DNA as genome
(D) . Transmitted by soft ticks of the genus Ornithodoros
Choose the correct answer from the options given below:
- Biological Characteristics of Asfarvirus (ASFV):
- Virions are large icosahedral enveloped particles ($175 - 215\text{ nm}$). Claiming small-sized $20\text{ nm}$ virions is False (parvoviruses/picornaviruses are $20\text{ nm}$).
- Exceptionally stable in organic matter across a wide pH range ($pH\ 4.0 - 11.5$). True.
- Genome is a single molecule of linear, double-stranded DNA ($170 - 190\text{ kbp}$) with terminal inverted repeats. True.
- The only known DNA arbovirus, transmitted biologically by soft ticks of the genus Ornithodoros (O. moubata). True.
- nalysis:
- Statements (B), (C), and (D) are correct. Hence, Option 4 is correct.
Explanation not matching this question?
क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?
Report
Want to practice this paper in exam conditions?
क्या आप परीक्षा जैसे माहौल में अभ्यास करना चाहते हैं?
Test yourself in 5-question batch format with timer and hidden answers.
5-प्रश्नों के बैच फॉर्मैट, टाइमर और छिपे उत्तरों के साथ खुद को परखें।
Start Practice Mode →
प्रैक्टिस टेस्ट मोड शुरू करें →