Phage viruses are abundant in the intestine of man and animals because…
a) they can only live at human body temperature
b) abundant nutrients are available
c) abundant water is present
d) abundant bacteria are present
When a virus enters a cell but does not replicate immediately, the situation is called…….
a) fermentation
b) symbiosis
c) synergism
d) lysogeny
Some differences b/w animal viral reproduction bacteriophages are……
a) animal viruses enter by endocytosis
b) the entire virus enters and the genome undergoes uncoating
c) the viral particle gains a membranous envelope by budding
d) all of these
The latent viral DNA contained in the host DNA is called a/an……
a) invader
b) prophage
c) prion
d) viroid
Outside of a human cell, HIV exists as roughly……..particles.
a) icosohedral
b) rectangular
c) spherical
d) filamentous
Which is not an opportunistic disease related to HIV infection?
a) recurrent pneumonia
b) destruction of body immune system
c) pulmonary tuberclosis
d) toxopasmosis
