1
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Trichoderma harzianum has proved a useful microorganism for:
A
biological control of soil-borne plant pathogens
B
reclamation of wastelands
C
gene transfer in higher plants
D
bioremediation of contaminated soils
2
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Nitrogen fixation in root nodules of Alnus is brought about by:
A
Bradyrhizobium
B
Frankia
C
Clostridium
D
Azorhizobium
3
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Which one of the following proved effective for biological control of nematodal disese in plants?
A
Pisolithus tinctorius
B
Paecilomyces lilacinus
C
Pseudomonas cepacia
D
Gliocladium virens
4
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Gel electrophoresis is used for:
A
cutting of DNA into fragments
B
separation of DNA fragments according to their size
C
construction of recombinant DNA by joining with cloning vectors
D
isolation of DNA molecule
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