Study Material

BIOTECHNOLOGY AND ITS APPLICATIONS

Botany

Inter Second Year

English

Very Short Answer Questions

Q1. Give different types of cry genes and pests which are controlled by the proteins encoded by these genes.

Q2. Can a disease be detected before its symptoms appear? Explain the principle involved.

Q3. What is GEAC and what are its objectives?

Q4. Name the nematode that infects the roots of tobacco plants. Name the strategy adopted to prevent this infestation.

Q5. For which variety of Indian rice, has a patent been filed by a USA company.

Q6. Give one example for each of transgenic plants which are suitable for food processing and those with improved nutritional quality.

Q7. What is green revolution? Who is regarded as Father of green revolution?

Short Answer Questions

Q1. List out the beneficial aspects of transgenic plants.

Q2. What are some bio-safety issues concerned with genetically modified crops?

Q3. Give a brief account of Bt cotton

Q4. Give a brief account of Pest resistant plants.

Exercises

Q1. 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.

Q2. What are transgenic bacteria? Illustrate using any one example.

Q3. Compare and contrast the advantages and disadvantages of production of genetically modified crops.

Q4. What are Cry proteins? Name an organism that produces it. How has man exploited this protein to his benefit?

Q5. List the advantages of recombinant insulin.

Q6. What is meant by the term bio- pesticide? Name and explain the mode of action of a popular bio- pesticide.