Polymerase Chain Reaction is not used in :

1. Confirming presence of a pathogen during early infection

2. Identifying the mutated genes in suspected cancer patients

3. Isolating the gene of interest from host DNA to be cloned by recombinant procedures

4. Detection of the presence of HIV in suspected AIDS patient

If gene isolate from marrow cells producing ADA is introduced into cells at early embryonic stage, it could be a permanant cure of ADA deficiency because the early embryonic cells :

1. Are more differentiated than the later stage cells

2. Are constantly dividing and do not get differentiated 

3. Are easy to manipulate than the later stage cells

4. Are virtually immortal 

To test the safety of polio vaccine, the organisms used are transgenic :

1. Mice

2. Pigs

3. Monkey 

4. Cattle

The application of biotechnology include
1. Therapeutics, processed food
2. Diagnostics, bioremediation
3. Genetically modified crops, energy production
4. All of these

Which of the following is not a critical research area of biotechnology

Which of the following cannot be a mean of increasing food production?

The Green revolution increased the food supply to

The partial reason of increased yield during green revolution was

Farmers of developing world cannot rely completely on agro-chemicals because

Which of the following is not a reason of less yield by farmers of developing countries?