1
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
2
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
3
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
4
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
A country with a high rate of population growth took measures to reduce it. The figure below shows age-sex pyramids of populations A and B twenty years apart. Select the correct interpretation about them : –
AIPMT 2009 Biology - Organisms and Populations Question 44 English
A
"A" is more recent shows slight reduction in the growth rate
B
"B" is more recent showing that population is very young
C
"A" is the earlier pyramid and no change has occurred in the growth rate
D
"B" is earlier pyramid and shows stabilized growth rate
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