1
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Bacillus thuringiensis forms protein crystals which contain insecticidal protein. This protein :
A
is activated by acid pH of the foregut of the insect pest.
B
binds with epithelial cells of midgut of the insect pest ultimately killing it
C
is coded by several genes including the gene cry
D
does not kill the carrier bacterium which is itself resistant to this toxin
2
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Silencing of mRNA has been used in producing transgenic plants resistant to :
A
White rusts
B
Nematodes
C
Bacterial blights
D
Bollworms
3
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Read the following four statements (A-D) about certain mistakes in two of them :
(A) The first transgenic buffalo, Rosie produced milk which was human alpha-lactalbumin enriched.
(B) Restriction enzymes are used in isolation of DNA from other macro-molecules
(C) Downstream processing is one of the steps of R-DNA technology
(D) Disarmed pathogen vectors are also used in transfer of R-DNA into the host
Which are the two statements having mistakes ?
A
Statements (B) and (C)
B
Statements (A) and (C)
C
Statements (A) and (B)
D
Statements (C) and (D)
4
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
The process of RNA interference has been used in the development of plants resistant to :
A
Nematodes
B
Fungi
C
Viruses
D
Insects
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