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| 1. |
The features of viroids |
| Answer» Some of the characteristic features of viroids are given below-\tViroids contain only RNA.\tThese are known to be smaller in size and infect only the plants.\tThese are among the smallest known agents causing infectious disease.\tViroids are the species of nucleic acid with relatively low molecular weight and a unique structure.\tThey reproduce within the host cell which they affect in and cause variations in them causing death.\tViroids are mainly classified into two families namely Pospiviroidae- nuclear viroids and Avsunviroidae- chloroplastic viroids.\tViroids are said to move in an intracellular manner, cell to cell through the plasmodesmata, and a long-distance through the phloem. | |