PART - 1 - Unit I : CH - 2 Biological Classification — BIOLOGY STD 11 Science — Question
Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYPART - 1 - Unit I : CH - 2 Biological Classification3 Marks
Question
Tell the main symptoms of Viroid.
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Answer
Its main symptoms are as follows: (1) Only single-stranded circular RNA is present in them. (2) RNA molecule is smaller, in which approximately 246 to 388 nucleotides are found. (3) Capsid is absent (4) Due to the absence of protein coat in them, they are also called naked viruses. (5) They are capable of replicating themselves. (6) The viroids discovered so far cause diseases only in plants.
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