What is the best pH of the soil for cultivation of plants?
3.4-5.4
6.5-7.5
4.5-8.5
5.5-6.5
Introduction of food plants developed by genetic engineering is not desirable because
economy of developing countries may suffer
these products are less tasty as compared to the already existing products.
this method is costly
There is a danger of introduction viruses and toxins with introduced crops
Gel electrophoresis is used for
cutting of DNA into fragments
separation of DNA fragments according to their size
construction of recombinant DNA by joining with cloning vectors
isolation of DNA molecule
Which one of the following proved effective for biological control of nematodal diseases in plants?
Pisolithus tinctorius
Pseudomonas cepacia
Gliocladium virens
Paecilomyces lilacinus
Which one of the following is being tried in India as a biofuel substitute for fossil fuels?
Jatropha
Azadirachta
Musa
Aegilops
The technique of obtaining large number of plantlets by tissue culture method is called
plantlet culture
organ culture
micro-propagation
macro-propagation
What is antisense technology?
A cell displaying a foreign antigen used for synthesis of antigens
Production of somaclonal variants in tissue cultures
When a piece of RNA that is complementary in sequence is used to stop expression of a specific gene
RNA polymerase producing DNA
Consider the following statements about biomedical technologiesa. During open heart surgery blood is circulated in the heart-lung machineb. Blockage in coronary arteries is removed by angiographyc. Computerized Axial Tomography (CAT) shows detailed internal structure as seen in a section of body.d. X-ray provides clear and detailed images of organs like prostate glands and lungsWhich two of the above statements are correct?
B and D
C and D
A and C
A and B
Two bacteria found to be very useful in genetic engineering experiments are
Nitrosomonas and Klebsiella
Escherichia and Agrobacterium
Nitrobacter and Azotobacter
Rhizobium and Diplococcus
The Ti plasmid is often used for making transgenic plants. This plasmid is found in
Azotobacter
Rhizobium of the roots of leguminous plants
Agrobacterium
Yeast as a 2µm plasmid
