1
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells) :
A
An antifeedant
B
A toxic protein
C
Both sense and anti-sense RNA
D
A particular hormone
2
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Which one of the following is a case of wrong matching ?
A
Somatic hybridization - Fusion of two diverse cells
B
Callus - Unorganised mass of cells produced in tissue culture
C
Vector DNA - site for tRNA synthesis
D
Micropropagation - In vitro production of plants in large numbers
3
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Consumption of which one of the following foods can prevent the kind of blindness associated with vitamin 'A' deficiency
A
Flaver Savr Tomato
B
Canolla
C
Bt- Brinjal
D
Golden rice
4
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Bacillus thuringiensis forms protein crystals which contain insecticidal protein. This protein :
A
is activated by acid pH of the foregut of the insect pest.
B
binds with epithelial cells of midgut of the insect pest ultimately killing it
C
is coded by several genes including the gene cry
D
does not kill the carrier bacterium which is itself resistant to this toxin
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