Biotechnology: Principles and Processes

Class 12 · Biology · 10 Questions

1intermediate🔧 Apply3 marksLong Answer

Can you list 10 recombinant proteins which are used in medical practice? Find out where they are used as therapeutics (use the internet).

2intermediate✨ Create5 marksDiagram

Make a chart (with diagrammatic representation) showing a restriction enzyme, the substrate DNA on which it acts, the site at which it cuts DNA and the product it produces.

3intermediate🔍 Analyze2 marksShort Answer

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

4advanced🔧 Apply2 marksNumerical

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

5intermediate🔍 Analyze2 marksShort Answer

Do eukaryotic cells have restriction endonucleases? Justify your answer.

6intermediate💡 Understand2 marksShort Answer

Besides better aeration and mixing properties, what other advantages do stirred tank bioreactors have over shake flasks?

7intermediate🔧 Apply3 marksShort Answer

Collect 5 examples of palindromic DNA sequences by consulting your teacher. Better try to create a palindromic sequence by following base-pair rules.

8beginner🧠 Remember1 markVery Short

Can you recall meiosis and indicate at what stage a recombinant DNA is made?

9advanced🔧 Apply3 marksShort Answer

Can you think and answer how a reporter enzyme can be used to monitor transformation of host cells by foreign DNA in addition to a selectable marker?

11beginner💡 Understand3 marksShort Answer

Explain briefly (a) PCR (b) Restriction enzymes and DNA (c) Chitinase