Biotechnology: Principles and Processes Class 12 MCQs Questions with Answers

1. Restriction’ in Restriction enzyme refers to :

2. Transgenic plants are develop by:

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

4. Important objective of biotechnology in agriculture section is

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

6. Viral genome incroporatcd into host DNA is called:

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

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

9. Hybridoma technology has been successfully used in

10. Plasmid is a:

11. Gene was synthesized in vitro by

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

13. 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

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

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

16. Who discovered Restricted endonucleas enzymes?

17. the ecor-1 enzyme is obtained from

18. Biolistics (gene gun) is suitable for

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

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