1
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
Which vector can clone only a small fragment of DNA ?
A
Cosmid
B
Bacterial artificial chromosome
C
Yeast artificial chromosome
D
Plasmid
2
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Change Language
During the process of isolation of DNA, chilled ethanol is added to :
A
Break open the cell to release DNA
B
Remove proteins such as histones
C
Facilitate action of restriction enzymes
D
Precipitate DNA
3
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following is not corretly matched for the organism and its cell wall degrading enzyme ?
A
Plant cells- Cellulase
B
Algae-Methylase
C
Fungi - Chitinase
D
Bacteria-Lysozyme
4
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
The colonies of recombinat bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of :
A
Insertional inactivation of alphagalactosidase in recombinant bacteria
B
Inactivation of glycosidase enzyme in recombinant bacteria
C
Insertional inactivation of alphagalactosidase in non-recombinant bacteria
D
Non-recombinant bacteria containing betagalactosidase
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