1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
During anaerobic digestion of organic waste, such as in producing biogas, which one of the following is left undergraded : -
A
Lignin
B
Cellulose
C
Hemi-cellulose
D
Lipids
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
In recent years, DNA sequences (nucleotide sequence) of mt-DNA and Y chromosomes were considered for the study of human evolution, because : -
A
They are uniparental in origin and do not take part in recombination
B
They can be studied from the samples of fossil remains
C
Their structure is known in greater detail
D
They are small, and therefore, easy to study
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Which one of the following bacteria has found extensive use in genetic engineering work in plants ?
A
Xanthomonas citri
B
Agrobacterium tumefaciens
C
Bacillus coagulens
D
Clostridium septicum
4
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
ELISA is used to detect viruses, wherethe key reagent is :-
A
Alkaline phosphatase
B
Southern
C
DNA probes
D
Catalase
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