ISC Class 12th Biology Chapter 12 - Biotechnology and its Applications Important Questions with Answers

Give a reason for the following:

Streptokinase is administered to the patients having myocardial infarction.

The diagram given below represents the schematic structure of proinsulin, which undergoes certain modifications before it becomes a fully functional insulin.

Study the diagram carefully and answer the questions that follow:

1. State the change the proinsulin undergoes to become fully functional.
2. Name the modern scientific technique used for the production of human insulin.
3. How are the two polypeptide chains of the fully functional insulin held together?

How many cycles of PCR are required to produce 250 molecules of DNA, starting with a single parental strand?

Name the technique used to detect the presence of HIV in the body of an individual, Justify the principle associated with this technique.

What is a 'biopatent'? Explain it with a suitable example.

Give an account of the Blue-White Method of selection of recombinants

Write a short note on Electrophoresis.

Expand the following abbreviation: BAC

Give one significant difference between:

Electroporation and Gene Gun.

What are the restriction endonucleases? Give the rules of their nomenclature.