1
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
At which stage of HIV infection does one usually show symptoms of AIDS ?
A
Within 15 days of sexual contact with an infected person.
B
When the infected retro virus enters host cells.
C
When HIV damages large number of helper T−Lymphocytes.
D
When the viral DNA is produced by reverse transcriptase.
2
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
What gases are produced in anaerobic sludge digesters ?
A
Methane and CO2 only
B
Methane, Hydrogen Sulphide and O2
C
Methane, Hydrogen Sulphide and CO2
D
Hydrogen Sulphide and CO2
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
An alga which can be employed as food for human being is :
A
Polysiphonia
B
Chlorella
C
Ulothrix
D
Spirogyra
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
To obtain virus−free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken ?
A
Epidermis only
B
Palisade parenchyma
C
Both apical and axillary meristems
D
Apical meristem only