Viruses

 

 DOWNLOAD ALL  PDF E-BOOK's    >>>CLICK HERE<<<

Viruses

Question 1
What kind of embryo is often used for viral assays?
A
Mouse
B
Rat
C
Cat
D
Chicken

Question 2
Enveloped viruses have a ..... shape.
A
icosahedral
B
helical
C
roughly spherical
D
complex

Question 3
Which of the following viruses belong to family Flaviviridae?
A
Rubella virus
B
Yellow fever virus
C
Hepatitis C virus
D
All of these

Question 4
The infected cells continue to reproduce themselves as well as the virus, and the mature virions are extruded from the cell surface continuously over a long period of time. This type of release mechanism is called a
A
productive infection
B
inductive infection
C
resultant infection
D
all of these

Question 5
The lysogenic state is governed by the activity of the regulatory region of the lambda phage genomes; this region is termed as
A
immunity repressor
B
immunity operon
C
operon repressor
D
none of these

Question 6
The viral DNA is removed from the host's chromosomes and the lytic cycle occurs. The process is called
A
spontaneous induction
B
inductive infection
C
resultant induction
D
spontaneous infection

Question 7
Viruses can be purified based on their size and density by using
A
gradient centrifugation
B
differential centrifugation
C
precipitation
D
none of these

Question 8
Usually viruses are separated into several large groups based primarily on
A
nature of the host
B
nucleic acid characteristics
C
capsid symmetry
D
diameter of the viroin or nucleocapsid

Question 9
The bacterial viruses having head made up of large capsomeres, but no tail is morphologically classified as
A
A
B
B
C
C
D
D

Question 10
Which of the following viruses show/s transformation of infected cells?
A
Hepatitis B virus
B
Human T cell lymphotronic virus type I
C
Epstein-Barr virus
D
All of these
There are 10 questions to complete.

 

 DOWNLOAD ALL  PDF E-BOOK's    >>>CLICK HERE<<<