Biological Classification Question 117

117. Which of the following shows coiled RNA strand and capsomeres?

(a) Polio virus

(b) Tobacco masaic virus

(c) Measles virus

(d) Retrovirus

Show Answer

Answer : b

Hints & Solutions

(b) TMV (Tobacco Mosaic Virus) is a rodshaped virus. The rod has a core which contains helically coiled single stranded RNA. There is a protective covering of protein called capsid around the infective part. Capsid consists of small subunits called capsomeres and has antigenic property.



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