Trying to find the right answer to this..

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

Biotechnology : Principles and Processes

One Word Answers

11. What is the source of DNA polymerase i.e., Taq polymerase ?

246 Views

Short Answer Type

12. Define “melting of target DNA”.

235 Views

13. What would be the molar concentration of human DNA in a human cell ? Consult your teacher.

579 Views

14. Do eukaryotic cells have restriction endonucleases ? Justify your answer.

No, eukaryotic cells do not have restriction endonucleases. This is because the DNA of eukaryotes is highly methylated by a modification enzyme, called methylase. Methylation protects the DNA from the activity of restriction enzymes .These enzymes are present in prokaryotic cells where they help prevent the invasion of DNA by virus.

520 Views

15. From what you have learnt, can you tell whether enzymes are bigger or DNA is bigger in molecular size. How did you know ?

274 Views

One Word Answers

16. Expand EFB.

345 Views

Short Answer Type

17. What are two core techniques that enabled birth of biotechnology ?

900 Views

Long Answer Type

18.

What is genetic engineering? Explain briefly the distinct steps common to all genetic engineering technology.
Or
With the help of diagrams show the different steps in the formation of recombinant DNA by action of restriction endonuclease.

743 Views

Short Answer Type

19. List three important features necessary for preparing genetically modified organism.

160 Views

20. Make a list of tools of recombinant DNA technology.

170 Views