Biotechnology: Principles and Processes Class 12 MCQs Questions with Answers

1. In an experiment, recombinant DNA bearing ampicillin-resistance gene is transferred into E.coli cells. The host cells are then cultured on a medium containing ampicillin. The result will be

2. Viral genome incroporatcd into host DNA is called:

3. Gene was synthesized in vitro by

4. the ecor-1 enzyme is obtained from

5. Hybridoma technology has been successfully used in

6. The DNA polymerase enzyme used in PCR is obtained from

7. Micro-organisms can be grown in the bioreactors by

8. The DNA polymerase enzyme used in PCR is obtained from

9. Biolistics (gene gun) is suitable for

10. Important objective of biotechnology in agriculture section is

11. The DNA fragments produced by the use of restriction endonucleases can be separated by

12. Plasmid is a:

13. Who discovered Restricted endonucleas enzymes?

14. Which of the following steps are catalysed by Taq polymerase in a PCR reaction?

15. Two microbes found to be very useful in genetic, engineering are:

16. Transgenic plants are develop by:

17. Significance of ‘heat shock’ method in bacterial transformation is to facilitate:

18. Name the drug used in cancer treatment produced by using biotechnology

19. Restriction’ in Restriction enzyme refers to :

20. Golden rice is a promising transgenic crop. When released for cultivation, it will help in :