4
MCQ (Single Correct Answer)
Antitrypsin is
A
an antacid
B
an enzyme
C
used to treat arthritis
D
used to treat emphysema
5
MCQ (Single Correct Answer)
A probe which is a molecule used to locate specific sequences in a mixture of DNA or RNA molecules could be
A
a single stranded RNA
B
a single stranded DNA
C
either RNA or DNA
D
can be $s s$ DNA but not $s s$ RNA
6
MCQ (Single Correct Answer)
Choose the correct option regarding retrovirus.
A
a RNA virus that can synthesis DNA during infection
B
a DNA virus that can synthesis RNA during infection
C
a $s s$ DNA virus
D
a dsRNA virus
7
MCQ (Single Correct Answer)
The site of production of ADA in the body is
A
erythrocytes
B
lymphocytes
C
blood plasma
D
osteocytes
8
MCQ (Single Correct Answer)
A protoxin is
A
a primitive toxin
B
a denatured toxin
C
toxin produced by Protozoa
D
inactive toxin