CBSE Class 12 Bio Technology Question Paper 2015 Outside Delhi with Answers Set 01

CBSE Class 12 Bio Technology Question Paper Set 1 2015 Outside Delhi with Answers. Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

1.What is the relationship between specific activity and purity of a protein ?

2. Metagenomic approach is of immense use to scientists. How ?

3. How can one produce large amounts of one of the strands of double stranded DNA using natural mechanism ?

4. A farmer wants to produce hybrid of mustard plants in his field. As a biotechnologist, what would you suggest to him to ensure successful pollination or fertilization ?

5. In isolating recombinant interferons from a culture of E.coli, the filtrate was subjected to purification processes, but no interferons were obtained.Suggest a possible reason.

6. Relationship between the number of genes and proteins is not linear. Why ? Give two reasons.

7. What is the importance of maintaining pH while culturing animal cells?How is the pH maintained in a culture media ?

8. On a large scale culturing of microbes, the sources of nutrients used in the medium are different from that of a small scale culture. Why ? Name any two sources of nutrients for a large scale culture.

9. What is the difference between a defined and a serum-supplemented medium ?

10. r-HuEPO is preferred over blood transfusion in persons with blood loss.Why ? 

11. Differentiate between Batch and Continuous culture.

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