GPB509 (1+1) Biotechnology for Crop Improvement

UNIVERSITY OF AGRICULTURAL SCIENCES, RAICHUR
College of Agriculture, Raichur
Department of Genetics and Plant Breeding
Biotechnology for Crop Improvement GPB509 (1+1)
Midterm Examination 2013-14

Marks: 20

Name:
I D No.:

13. What is anther culture? How it is useful in crop improvement? 2.0

14. How to obtain double haploid lines? Explain 2.0

15. Write problems associated with haploid plants. 1.0

16. What is hybrid sorting? Explain 2.0

17. Write the methods to obtain protoplasts? 2.0

18. Discuss somaclonal variation and gametoclonal variation? Write the role in crop improvement. 2.0

19. Write the applications of somatic hybridization. 1.0

20. What is cryopreservation? Write the factors affecting viability of cells frozen from cryopreservation. 2.0

21. Write merits and demerits of cryopreservation. 2.0

22. Write note on “Somatic embryogenesis: A developmental process” 2.0

23. Compare contributions of tissue culture and marker assisted selection for crop improvement. 2.0

24. Write the phases of microspore embryogenesis. 1.0