1
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
2
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
3
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Which of the following complex ions is expected to absorb visible light?
(At. nos. Zn = 30, Sc = 21, Ti = 22, Cr = 24)
A
[Ti(en)2(NH3)2]4+
B
[Cr(NH3)6]3+
C
[Zn(NH3)6]2+
D
[Sc(H2O)3(NH3)3]3+
4
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and exploded. Amount of water produced in this reaction will be
A
3 mol
B
4 mol
C
1 mol
D
2 mol