1
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Restriction endonucleases are enzymes which –
A
recognize a specific nucleotide sequence for binding of DNA ligase
B
remove nucleotides from the ends of the DNA molecule
C
restrict the action of the enzyme DNA polymerase
D
make cuts at specific positions within the DNA molecule
2
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Which one of the following is commonly used in transfer of foreign DNA into crop plants ?
A
Trichoderma harzianum
B
Meloidogyne incognita
C
Agrobacterium tumefaciens
D
Penicillium expansum
3
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
4
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
The linking of antibiotic resistance gene with the plasmid vector became possible with:
A
Exonucleases
B
Endonucleases
C
DNA ligase
D
DNA polymerase

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