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.
