Class 11 NEET Biology Biological Classification Questions Part 1

(a) : Tobacco Mosaic Virus is a ribovirus and contains single stranded RNA. It was proved by the experiments of Frankel Conart that RNA is the genetic material in this virus. It does not contain any DNA and is composed of 6% RNA surrounded by a hollow cylinder of portion subunits. Double stranded RNA is found in Reovirus and Tumor virus. Retroviruses have two copies of single stranded RNA