1
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
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Manipulation of DNA in genetic engineering became possible due to the discovery of : -
A
Transcriptase
B
DNA ligase
C
Primase
D
Restriction endonuclease
3
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Maximum number of bases in plasmids discovered so far : -
A
500 kilo base
B
5 kilo base
C
50 kilo base
D
5000 kilo base
4
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Which of the following cut the DNA from specific places ?
A
Exonuclease
B
Alkaline phosphate
C
E.coli restriction endonuclease I
D
Ligase
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