GPB 201(2+1) Fundamentals of Plant Breeding ( Question Paper)

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UNIVERSITY OF AGRICULTURAL SCIENCES, RAICHUR
II Yr. B.Sc.(Hons.) Agriculture GPB 201(2+1)
FINAL EXTERNAL EXAMINATION
Fundamentals of Plant Breeding
Sem. 2017-’18
Date: 22-01-2018
Time: 2½ Hrs.
Max. Marks : 50

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I A. CHOOSE THE APPROPRIATE ANSWER (10x0.5=5.0)

1. When pollen from a flower of a plant falls on to a stigma of other flower of the same plant, it is called
   a. Chasmogamy  b. Autogamy  c. Geitonogamy  d. Cleistogamy

2. Law of homologous series in variation is proposed by
   a. Mendel  b. Koelreuter  c. Linnaeus  d. Vavilov

3. Barnase/Barstar system is an example for
   a. Transgenic GMS system  b. CMS  c. CGMS  d. PGMS

4. Transfer of desirable traits from noble cane to Indian cane is commonly referred to as
   a. Evolution of Sugarcane  b. Mobilization of Sugarcane
   c. Neobilization of Sugarcane  d. Breeding of Sugarcane

5. Purelines are
   a. Homozygous & Heterogeneous  b. Heterozygous & Heterogeneous
   c. Heterozygous & Homogeneous  d. Homozygous & Homogeneous

6. Emasculation means
   a. Removal of stigma  b. Removal of anthers  c. Both  d. None

7. The simplest form of progeny selection is
   a. Ear-to-row method  b. Backcross selection  c. Bulk method  d. None

8. First man made cereal
   a. Triticale  b. Pomato  c. Raphanobrassica  d. None

9. The source of B genome in wheat is
   a. T. Monococcum  b. A. Speltoides  c. A. Squarrosa  d. None

10. Variation in pureline is due to
    a. Mechanical mixtures  b. Naturally hybridization
    c. Chromosomal aberrations  d. All of the above

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I B. MATCH THE FOLLOWING (5x0.5=2.5)

A	B
11. Bread wheat	a. Banana
12. Triploid	b. Dihaploid
13. Pea	c. Allotetraploid
14. Cotton	d. Groundnut
15. Allotetraploid	e. Diploid

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I C. STATE THE FOLLOWING STATEMENTS AS TRUE OR FALSE (5x0.5=2.5)

16. Source of dwarfing gene in wheat is Norin 10.

17. Wheat is a example of Geitonogamy.

18. Maintenance of only A and B line is required in cytoplasmic genic male sterility system.

19. Variation within a pureline is not heritable.

20. Bulk method of breeding also called as mass method or the population method of breeding.

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II. DEFINE THE FOLLOWING (10x1.0=10.0)

21. Domestication

22. Testcross

23. Hardy-Weinberg law

24. Parthenogenesis

25. Recurrent Selection

26. Mutation

27. Aneuploidy

28. Male sterility

29. Heterosis

30. Pureline

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III. DIFFERENTIATE ANY FIVE OF THE FOLLOWING QUESTIONS (5x2.0=10.0)

31. Polygenic and oligogenic traits.

32. Primary Introduction and Secondary Introduction.

33. Dominance and Over dominance hypothesis.

34. Single seed descent and Bulk method.

35. Male sterility and self incompatibility.

36. Correlation and regression.

37. Selection differential and selection advance.

38. General and specific combining ability.

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IV. ANSWER ANY FOUR OF THE FOLLOWING QUESTIONS (4x2.5=10.0)

39. Write a brief note on mechanisms promoting self and cross pollination in crops.

40. Give a brief comparison of mass selection and pureline selection.

41. Write a note on polyploidy breeding, types with suitable examples.

42. Explain Hardy-Weinberg law and list factors affecting Hardy Weinberg law.

43. Write short notes on Male sterility, types with suitable examples.

44. List the various centers of origin of cultivated plants with some important plants originated in them.

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V. ANSWER 45th, 46th AND ANY ONE OF 47th OR 48th QUESTION (3+3+4=10.0)

45. What is Apomixis? Classify various types of Apomixis and discuss its role in plant breeding.

46. Define heterosis. Explain hypothesis of heterosis giving their main features and objections.

47. Describe briefly the procedure for transfer of a dominant character through backcross method.

OR

48. Define participatory plant breeding. Give a brief classification and what are the advantages and disadvantages.