Quiz on Virus Biology

Quiz on Virus Biology

1. Which of the following is a helical virus?

(a) TMV

(b) T4 phage

(c) Poxvirus

(d) Herpes virus

2. Which of the following statements are true about the viruses?

(a) Free-living

(b) Obligate parasites

(c) Both (a) and (b)

(d) None of the above

3. A fully formed infectious viral particle is called _________.

(a) Virion

(b) Viriod

(c) Capsid

(d) Virusoid

4. The genetic constituent of viruses is  ________.

(a) RNA

(b) DNA

(c) ss DNA

(d) DNA or RNA

5. The viral genome is enveloped in a protein coat known as

(a) Capsid

(b) Outer envelope

(c) Capsomere

(d) Nucleic

6. Which of the following statements are true about the tobacco mosaic virus (TMV)?

(a) RNA virus

(b) DNA virus

(c) Bacteriophage

(d) ss DNA or ds DNA

7. The shape of the TMV is _______.

(a) Rod-shaped

(b) Oval shaped

(c) Cuboidal shaped

(d) Spherical shaped

8. Viruses that attack bacteria are called_______.

(a) Virophage

(b) Lysophage

(c) Bacteriophage

(d) None of the above

9. The T2 phage is called_______.

(a) ss DNA phage

(b) ss RNA phage

(c) ds DNA phage

(d) ds RNA phage

10. Bacteriophages that induce bacterial cell lysis are called_______.

(a) Viroids

(b) Lysogenic phages

(c) Virulent phages

(d) Temperate phages

Quiz Over