Viroids differ from viruses in having:

  • Option 1)

    DNA molecules without protein coat 

  • Option 2)

    RNA molecules with protein coat 

  • Option 3)

    RNA molecules without protein coat 

  • Option 4)

    DNA molecules with protein coat 

 

Answers (1)

As we learnt in 

Viroids -

Smallest self replicating particles having RNA without protein coat.

- wherein

Causes potato spindle tuber disease (PSTD).

 

 

Composition of virus -

  1. Envelope - Outer loose covering with peplomer proteins.
  2. Capsid - Protein covering around the genetic material made of capsomeres.
  3. Nucleoid - Either DNA or RNA.

-

 

 


Option 1)

DNA molecules without protein coat 

Incorrect

Option 2)

RNA molecules with protein coat 

Incorrect

Option 3)

RNA molecules without protein coat 

Correct

Option 4)

DNA molecules with protein coat 

Incorrect

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