1
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
2
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
DNA fragments generated by the restriction endonucleases in a chemical reaction can be separated by :
A
Polymerase chain reaction
B
Restriction mapping
C
Electrophoresis
D
Centrifugation
3
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following represents a palindromic sequence in DNA ?
A
5'-GAATTC-3'
3'-CTTAAG-5'
B
5'-GATACC-3'
3'-CCTAAG-5'
C
5'-CCAATG-3'
3'-GAATCC-5'
D
5'-CATTAG-3'
3'-GATAAC-5'
4
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
The figure below shows three steps (A, B, C) of Polymerase Chain Reaction (PCR). Select the option giving correct identification together with what it represents ?
AIPMT 2012 Mains Biology - Biotechnology: Principles and Processes Question 81 English
A
C - Extension in the presence of heat stable DNA polymerase
B
B - Denaturation at a temperature of about 98ºC separating the two DNA strands
C
A - Denaturation at a temperature of about 50ºC
D
A - Annealing with two sets of primers

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