A) All are parasites
B) All of them have helical symmetry
C) They have ability to synthesize nucleic acids and proteins
D) Antibiotics have no effect on them
Correct Answer: B
Solution :
[b] The nucleocapsids of viruses are constructed in highly symmetric ways. Two types of symmetry are recognized in viruses, which correspond to the two primary shapes, .rod and spherical. Rod-shaped viruses have helical symmetry and spherical viruses have icosahedral symmetry.
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