Biotechnology: Principles and Processes Class 12 MCQs Questions with Answers

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

2. Plasmid is a:

3. Who discovered Restricted endonucleas enzymes?

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

5. Restriction’ in Restriction enzyme refers to :

6. Hybridoma technology has been successfully used in

7. Viral genome incroporatcd into host DNA is called:

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

9. the ecor-1 enzyme is obtained from

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

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

12. Transgenic plants are develop by:

13. Biolistics (gene gun) is suitable for

14. Important objective of biotechnology in agriculture section is

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

16. 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

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

18. Gene was synthesized in vitro by

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

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