A) polio viruses
B) rice dwarf virus
C) TMV
D) \[\phi \] X174
Correct Answer: D
Solution :
The nucleic acid found in virus can be either DNA or RNA. On the basis of number of strands present in nucleic acid they are further cate gorised as: (i) Single stranded DNA virus: Bacteriophage \[\phi \] X 174, coliphage S13, Bacteriophage M13. (ii) Double stranded DNA virus: Adenovirus, Chickenpox, small pox, coliphage\[{{T}_{2}},{{T}_{4}},{{T}_{6}},{{T}_{3}},{{T}_{7}}\], Lambda coliphage. (iii) Single stranded RNA virus: TMV, Influenza, Rhinovirus, AIDS, polio, rabies, coliphage R17. (iv) Double stranded RNA virus: Wound tumour virus, rice dwarf virus, reovirus.
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