Download OU B.Sc 2018 Dec 3rd Year 3216 Plant Bio Technology Question Paper

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Code No. 3216

FACULTY OF SCIENCE

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B.Sc. V-Semester (CBCS) Examination, November | December 20

Subject : Bio-Technology

Paper - VI-A : Plant Biotechnology (DSE E-1)

Time : 3 Hours Max. Marks: 60

PART - A (5 x 3 = 15 Marks)

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(Short Answer Type)

Note : Answer any FIVE of the following questions.

1. Plant growth regulators.
2. Macronutrients and micronutrients.
3. Meristem culture.

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4. Embryo rescue.
5. Antibody production in plants.
6. Herbicide tolerant plants.
7. Surface sterilization of explant.
8. Vitrification.

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PART -B (3 x 15 Marks)

(Essay Type)

Note: Attempt ALL questions

1. (a) Define plant cell totipotency. Describe the different phenomena involved in the regeneration of a whole plant from an explant.
   OR
   

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   (b) What is callus culture? Describe in detail the initiation and maintenance of callus cultures.
2. (a) Describe in detail protoplast isolation, fusion and selection of somatic hybrids.
   OR
   (b) What is somaclonal variation? Explain the causes and its applications.
3. (a) Explain about transgenic plants.
   

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   OR
   (b) What are stress proteins? Discuss about the molecular details involved in the development of drought stress tolerant plants.

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