Forgot password?

View all notifications
Books Shortlist
Your shortlist is empty

NCERT solutions Biology Class 12 chapter 12 Biotechnology and its Applications


NCERT Biology Class 12

Biology Textbook for Class 12

Chapter 12 - Biotechnology and its Applications

Pages 215 - 216

Crystals of Bt toxin produced by some bacteria do not kill the bacteria themselves because −

(a) bacteria are resistant to the toxin

(b) toxin is immature:

(c) toxin is inactive:

(d) bacteria encloses toxin in a special sac.

Q 1 | Page 215

What are transgenic bacteria? Illustrate using any one example.

Q 2 | Page 215

Compare and contrast the advantages and disadvantages of production of genetically modified crops.

Q 3 | Page 215

What are Cry proteins? Name an organism that produces it. How has man exploited this protein to his benefit?

Q 4 | Page 216

What is gene therapy? Illustrate using the example of adenosine deaminase (ADA) deficiency.

Q 5 | Page 216

Can you suggest a method to remove oil (hydrocarbon) from seeds based on your understanding of rDNA technology and chemistry of oil?

Q 7 | Page 216

Does our blood have proteases and nucleases?

Q 9 | Page 216

Consult internet and find out how to make orally active protein pharmaceutical. What is the major problem to be encountered?

Q 10 | Page 216

NCERT Biology Class 12

Biology Textbook for Class 12