Biotechnology: Principles and Processes Class 12 MCQs Questions with Answers

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

2. 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

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

4. Who discovered Restricted endonucleas enzymes?

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

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

7. Important objective of biotechnology in agriculture section is

8. Viral genome incroporatcd into host DNA is called:

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

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

11. Transgenic plants are develop by:

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

13. Hybridoma technology has been successfully used in

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

15. Restriction’ in Restriction enzyme refers to :

16. Plasmid is a:

17. Gene was synthesized in vitro by

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

19. Biolistics (gene gun) is suitable for

20. the ecor-1 enzyme is obtained from