1
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
The bacterium Bacillus thuringiensis is widely used in contemporary biology as -
A
Indicator of water pollution
B
Agent for production of dairy products
C
Source of industrial enzyme
D
Insecticide
2
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Transgenic plants are the ones -
A
Produced after protoplast fusion in artifical medium
B
Produced by a somatic embryo in artificial medium
C
Generated by introducing foreign DNA in to a cell and regenerating a plant from that cell
D
Grown in artificial medium after hybridization in the field
3
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Which one of the following is commonly used in transfer of foreign DNA into crop plants ?
A
Trichoderma harzianum
B
Meloidogyne incognita
C
Agrobacterium tumefaciens
D
Penicillium expansum
4
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
What is antisense technology?
A
RNA polymerase producing DNA
B
Production of somaclonal variants in tissue cultures
C
When a piece of RNA that is complementary in sequence is used to stop expression of a specific gene
D
A cell displaying a foreign antigen used for synthesis of antigens