Question

Which statement is wrong for viruses?

• 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

Answer 1

Answer: (B)

All of them have helical symmetry

Answer 2

In viruses, three architectural forms are found - helical (elongated body, e.g., TMV), cuboidal (short broad body with rhombic, rounded, polyhedral shape e.g,. poliovirus) and binal (with both cuboidal and helical parts e.g., T2 phage).