Which of the following virus is single stranded RNA virus?
a) small pox virus
b) mild rash virus
c) diarrhea virus
d) rubella virus
Viruses are……in nature.
a) saprophytic
b) photosynthetic
c) autotrophic
d) parasitic
The head of which virus is icosohederal?
a) Bacteriophage
b) HIV
c) COVID-19
d) influenza virus
The bacteriophage that performs lytic cycle is called……..
a) virulent phage
b) lytic phage
c) temperate phage
d) both a and b
The bacteriophage that performs lysogenic cycle is called……..
a) virulent phage
b) lysogenic phage
c) temperate phage
d) both b and c
Which of the following virus is widely used in genetic engineering as vector?
a) Bacteriophage
b) HIV
c) COVID-19
d) hepatitis B virus
