1
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Stirred-tank bioreactors have been designed for –
A
Purification of the product
B
Availability of oxygen throughout the process
C
Ensuring anaerobic conditions in the culture vessel
D
Addition of preservatives to the product
2
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Which of the following are used in gene cloning ?
A
Mesosomes
B
Nucleoids
C
Lomasomes
D
Plasmids
3
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
4
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

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