AGB Complete Test 2

1. Match the following diploid numbers of chromosomes with their species: a. Goat i. 78 b. Sheep ii. 54 c. Horse iii. 60 d. Poultry iv. 64 Answer options:

2. The Germplasm theory was proposed by:

3. The science that deals with chromosomes are:

4. Genetic engineering is sometimes called as:

5. Regulated unit of genetic engineering is:

6. Enzyme useful in genetic engineering is:

7. Which is an example of chemical mutagen?

8. Smallest segment of genetic material affected by radiation is:

9. Hybridomas are result of fusion of:

10. Which type of cell division is important for Animal Kingdom?

11. Buffalo species having 48 chromosomes is known as:

12. Arrange the different sub stages of first meiotic prophase in chronological order of their chromosome behavior and appearance: Pachynema Leptonema Diakinesis Zygonema Diplonema Arrange the sub stages in chronological order

13. The chromosome number of male sheep is:

14. Chromosome number of cattle is:

15. The distance between two base pairs on DNA strand is:

16. Which of the following acts as start codon during translation process?

17. During which phase of mitotic cell division, the nuclear membrane and nucleolus disappear?

18. Which of the following RNAs is involved in the selection of proteins for export?

19. Which of the following forms of double helical DNA, polynucleotide are in the form of right handed helix?

20. The factor responsible for initiating cell division is:

21. Crossing over takes place between:

22. The type of cell division which takes place only once in cell’s lifetime, is called:

23. Crossing over takes place in:

24. What happens in crossing over?

25. Chromosome which do not have centromere is called:

26. Diagrammatic representation of the karyotype is called:

27. Mitosis can occur in which of the following?

28. The minimum number of chiasmata in a pair is:

29. During karyokinesis the chromosome exhibit minimum coiling at which phase?

30. H. J. Muller reported that the X-rays induces:

31. Common wheat with 42 chromosomes is:

32. The sex chromosomes of females and males are respectively:

33. Dr. Hargobind Khurana has been awarded Nobel Prize for research on:

34. Who described the operon concept in E. coli?

35.Extra chromosomal piece is known as:

36. In polymerase chain reaction which of the following is required essentially?

37. The number of base pair units in a single turn of DNA is:

38. The fragments of DNA attached to an RNA initiator component was discovered by:

39. The carbon atom at position 4 and 5 and the nitrogen atom at the position 7 of purine base are supplied from:

40. Fragmentation of nucleus in a cell is termed as:

41. The nitrogenous base pair present in RNA but absent in DNA:

42. The chromosomes with the centromere near one end are called:

43. The stage of cell division in which the chromosomes are most discrete and arranged in an equatorial plate?

44. Which of the following species pairs possess equal number of chromosomes?

45. In a Ram, DNA can be estimated from all of the following except:

46. Which of the following has maximum chromosome number?

47.During which phase of the cell cycle does the centrosome duplicate in animal cells?

48. Which of the following statements about the G0 phase is incorrect?

49.Which of the following statements about chromosome numbers in livestock species is correct?

50. If crossing over takes place in linked genes, the proportion of new/recombinant offsprings population is:

51. The dihybrid F2 phenotypic ratio in case of dominance recessive epistasis is:

52. Hip dysplasia in German Shepherd dogs is due to:

53. Robertsonian Translocation in cattle is due to the fusion of the following chromosome:

54. A delayed somatic effect of radiation is:

55. In humans, trisomy of chromosome number 21 is responsible for:

56. Which of the following statements are true: Maximum diameter of chromosome was observed in anaphase The chromosome pairing occurs between homologous chromosomes The centromere divide chromosome into five equal halves Each chromosome has definite place in interphase Choose the correct answer:

57. Match the following Species of animals with their Chromosomes (2n): Species Chromosomes (2n) (a) Domestic cattle (1) 60 (b) Domestic river buffalo (2) 54 (c) Domestic sheep (3) 38 (d) Domestic swine (4) 50 Select the correct answer using the code below:

58. Match the following: (a) Restriction endonucleases (1) Small DNA segments used in DNA fingerprints (b) Ligases (2) Molecular scissors (c) Probe (3) Vector (d) Cosmid (4) Molecular stitchers Choose the correct answer:

59. The Father of animal breeding is:

60. Milk production in cows is an example of:

61. Sudden heritable change is:

62. Epistasis is:

63. Body coat comprising of large irregular patches of black and white with well defined line of demarcation between two colours is called:

64. Modified dihybrid ratio in duplicate dominant epistasis is:

65. Exchange of genetic material between non-homologous chromosomes is known as:

66. Chromosome number (2N) of Bubalis bubalis is:

67. Modification of normal gene expression in which a particular gene at one locus masks the expression of at least one other gene at a different chromosomal location is termed

68. Two genes of two different traits located on the same chromosome are called

69. Parents of one generation passes on the sex-linked characters to the opposite sex in the next generation. This process is known as

70. Reappearance of an ancestral but not parentral trait after several generations is called

71. Which of the following term is used for replacement of a purine base by a pyrimidine base and vice versa?

72. Which of the following term is used to explain Bar eye in Drosophila?

73. Match the following theories with the scientist. a. Germ plasm Theory i. Hugo Devries b. Mutation Theory ii. Charles Darwin c. Theory of evolution iii. August Weismann d. Preformation Theory iv. Jan Swammerdam Options:

74. Match the pair. a. Monosomic i. 2n-1 b. Triosomic ii. 2n + 1 c. Tetrasomic iii. 2n-2 d. Nullosomic iv. 2n + 2 Options:

75. Who was the first to unravel the secret of biological reproduction and heredity?

76. The mahogany and red colors in cattle represent a good example to illustrate:

77. The first case of mutation was discovered in:

78. Manifold effects of a gene refer to:

79. Role of mutation in evolution is:

80. Which is a tetrasomic condition?

81. Mutation induced by 5-Bromouracil are:

82. Daughter of colour blind father and normal mother marries a normal person. Colour blindness in the family shall be:

83. Drones are:

84. The lethal gene ratio is:

85. Skip generation inheritance is seen in:

86. The condition in which a single gene influences more than one trait is referred to as:

87.Parents having A and AB blood groups will not produce children having:

88. How many genetically different germ cells are produced by two pairs of chromosomes?

89. A dominant expression that depends on the sex of the individual is called:

90. If there are 3 alleles for the trait in a population, the total number of genotypes occurring in the population will be:

91. In a di-hybrid cross involving AaBb x AaBb, the fraction of progeny that will be homozygous for all four genes will be:

92. Non allelic dominance is known as:

93. A measure of the intensity of natural selection action on the genotypes in the population:

94. The criss-cross pattern of inheritance is seen in:

95. The number of linkage groups in cattle are:

96. In a cross between two heterozygous individuals for a trait showing incomplete dominance, what proportion of the offspring is expected to show the intermediate phenotype?

97. Name the smallest sheep breed with typical reversed ―U‖ shaped body conformation from rear side.

98. Hitkari is the breed of chicken developed at______________

99. Which of the following breeds of class has feathered shanks?

100. Pea comb is the typical character of __________ breed