Download OU B.Sc 2019 Dec 5th Sem (3rd Year) 8215 Plant Bio Technology Question Paper

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FACULTY OF SCIENCE

B Sc. V-Semester (CBCS) Examination, November / December

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Subject: Bio-Technology

Plant Biotechnology

Paper-VI-A (DSE E-1)

Time: 3 Hours

PART - A (5x3 = 15 Marks)

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[Short Answer Type]

Note: Answer any five of the following questions. Each question carries equal marks.

1. Differentiate dedifferentiation and redifferentiation
2. What are the micro nutrients used in plant tissue culture media?
3. What is meristem culture? How can it be useful in production of virus free plants?

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4. Give a brief note on batch and continuous cell suspension cultures
5. How are glyphosate tolerant plants produced?
6. Explain the use of transgenic plants for production of biodegradable plastics
7. Define encapsulation. What are the encapsulating agents used in production of synthetic seeds?
8. How are explants sterilized?

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PART - B (3x15 = 45 Marks)

[Essay Answer Type]

Note: Answer all questions from the following.

1. a) Describe the processes organogenesis and somatic embryogenesis.
   OR
   

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   b) Write an account on induction of callus cultures.
2. a) What is micropropagation? Explain the stages of micropropagation and its applications.
   OR
   b) How can protoplasts be useful for production of somatic hybrids and cybrids?
3. a) Describe the production of transgenic plants for viral resistance.
   

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   OR
   b) How can transgenic plants be enhanced for vitamin A and nutritive values? Discuss.

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