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Chapters1 - Reproduction in Organisms
2 - Sexual Reproduction in Flowering Plants
3 - Human Reproduction
4 - Reproductive Health
5 - Principles of Inheritance and Variation
6 - Molecular Basis of Inheritance
7 - Evolution
8 - Human Health and Disease
9 - Strategies for Enhancement in Food Production
10 - Microbes in Human Welfare
11 - Biotechnology : Principles and Processes
12 - Biotechnology and its Applications
13 - Organisms and Populations
14 - Ecosystem
15 - Biodiversity and Conservation
16 - Environmental Issues
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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.
What are transgenic bacteria? Illustrate using any one example.
Compare and contrast the advantages and disadvantages of production of genetically modified crops.
What are Cry proteins? Name an organism that produces it. How has man exploited this protein to his benefit?
What is gene therapy? Illustrate using the example of adenosine deaminase (ADA) deficiency.
Can you suggest a method to remove oil (hydrocarbon) from seeds based on your understanding of rDNA technology and chemistry of oil?
Does our blood have proteases and nucleases?
Consult internet and find out how to make orally active protein pharmaceutical. What is the major problem to be encountered?
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