Bihar Board - Class 12 Biology-Chapter 12. Biotechnology and its Applications Multiple Choice Questions
The multiple choice questions for Chapter 12. Biotechnology and its Applications of Class 12 Chemistry are provided here in English. These questions are based on the NCERT curriculum for Class 12. They are designed to help students assess their understanding of the key concepts covered in the chapter. These multiple choice questions will be useful not only for the Class 12 board exams but also for entrance exams like NEET. The questions for Bihar Board Class 12 Chemistry, Chapter 12. Biotechnology and its Applications, have been prepared by expert teachers at Vidyakul.
Multiple Choice Question
1. The genetically modified brinjal in India has been developed for
(a) Drought resistance
(b)Enhancing mineral content
(c)Enhancing shelf life
(d)Insect resistance
Answer:d
2. Which kind of therapy was given in 1990 to a four-year-old girl with ADA deficiency? (Adenosine Deaminase)
(a) Radiation Therapy
(b)Gene Therapy
(c)Radiation Therapy
(d)Immunotherapy
Answer:b
3. The genetically modified brinjal in India has been developed for
(a) Enhancing mineral content
(b)Insect-resistance
(c)Drought resistance
(d)Enhancing self life
Answer:b
4. The maximum number of existing transgenic animals is of _____
(a)Fish
(b)Mice
(c)Cow
(d)Pig
Answer:b
5. The process of RNA interference has been used in the development of plants resistant to _____
(a) Insects
(b)Nematodes
(c)Fungi
(d)Viruses
Answer:b
6. The first ever human hormone produced by recombinant DNA technology is _____
(a) Progesterone
(b)Insulin
(c)Estrogen
(d)Progesterone
Answer:b
7. In Bt cotton, the Bt toxin present in plant tissue as pro-toxin in converted into active toxin due to _____
(a) Acidic pH of the insect gut
(b)Alkaline pH of the insect gut
(c)Presence of conversion factors in insect gut
(d)Action of gut microorganisms
Answer:b
8. Cry-I endotoxins obtained from Bacillus thuringiensis are effective against ___
(a) Nematodes
(b)Flies
(c)Mosquitoes
(d)Boll worms
Answer:d
9. Which of the following is not used as a biopesticide?
(a) Xanthomonas campestris
(b)Bacillus thuringiensis
(c)Trichoderma harzianum
(d)Nuclear Polyhedrosis Virus
Answer:a
10. A transgenic food crop which may help in solving the problem of night blindness in developing countries is _______
(a)Golden Rice
(b)Flavr Savr tomatoes
(c)BT soybean
(d)Starlink maize
Answer:a
