Which statement is wrong for viruses?
(1) All are parasites
(2) All of them have helical symmetry
(3) They have ability to synthesize nucleic acids and proteins
(4) Antibiotics have no effect on them
(2) 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.