Plant Breeding and Genetics Model Questions MCQs Test 1


Plant Breeding and Genetics multiple choice question and answers MCQs for Scientific Officer, Senior Scientific Officer, Principle Scientific Officer PPSC FPSC Tests


Plant Breeding and Genetics Model Questions MCQs Test 1

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  1. In line x tester cross mating is done between:





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  2. Line x tester analysis does not permit mating between:





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  3. Line x tester analysis provide information about:





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  4. Productive flowers in sunflower are known as





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  5. Best quality edible oil available from plant is





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  6. Auto polyploidy have been successfully exploited in





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  7. Drying capacity of oil depends upon





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  8. In spermatogenesis each spermatogonium increases in size to form a





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  9. Who said that "sports" are of no significance in evolution?





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  10. A mature ovule is known as





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  11. An alternate form of gene is known as





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  12. In human being the blood groups are characterized by the





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  13. Line x tester cross is a modified form of a





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  14. Maximum number of parents can be evaluated for combining ability at a time by





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  15. Best quality oil for paint industry is made with the help of vegetable oil





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  16. Canola types of brassica originated in





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  17. At present number of sugar mills working in Pakistan for extraction of sugar





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  18. Bt cotton has been evolved through





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  19. Which of the following are main fruiting branches in cotton





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  20. Jute fiber is obtained from





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  21. The adaptation of a plant to changed climate to a new climate is called as





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  22. Type of infertility due to the failure of plants with normal pollen and ovules of set seed due to some physiological hindrance that prevents fertilization is called





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  23. A good tester should possess





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  24. According to the 2nd law of inheritance the member of all gene pairs assort __________ and form all possible combinations __





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  25. The individual having genotype TtAa is known as





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  26. The plant Oenthera was studied extensively by





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  27. The type of gametes produced by the genotype PpRr will be





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  28. The type of combinations produced by the cross PpRr x PPRr will be





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  29. A progeny descendent solely by self pollination from a single homozygous plant is known as





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  30. In pedigree selection after hybridization, the selection for the plant is started in





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  31. Selection leads to





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  32. Genetic variance refers to the





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  33. Intra allelic (Intra locus) interaction refers to the





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  34. Non allelic interaction (inter-locus-interaction) refers to the





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  35. In fruit fly the total chromosome number is





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  36. Undifferentiated mass of cells produced in vitro is called





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  37. Which International center is responsible for breeding triticale, barley, wheat and corn





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  38. Flowers contain all four floral organs are known as





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  39. Imperfect flower are always





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  40. Einkorn wheat has the chromosome number





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  41. In the DNA molecule the base cytosine C is linked with guanine G through





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  42. Contemporary theory of evolution was developed by the





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  43. The enzyme DNAase degrades





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  44. Which of the following types of epistasis is fixable





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  45. Important component of plant breeding is to increase genetic variability through





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  46. Egg and pollen grain after their formation receive genes





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  47. The transfer of pollen from anther to stigma is known as





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  48. Additive gene action refers to the





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  49. Fixable gene action includes





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  50. In the process of protein synthesis the required amino acids are brought into the polypeptide chain by





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  51. Union of male and female gametes is known as





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  52. Fertilization resulting from the union of gametes produced





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  53. Plant having different alleles in their chromosome is known as





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  54. Recessive mutations are uncovered by the





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  55. A group of cells carrying out the same function is known as





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  56. The study of the living organisms at the cell level is termed as





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  57. The genetic makeup of an individual is called as





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  58. The phenotypic variation in a population is increased through the process of





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  59. Additive genes show





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  60. Dominant genes exhibit





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  61. Which of the following is predominant in the natural breeding population





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  62. The study of plant life in relation to its environment is known as





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  63. Plant bear flowers of only one sex on a plant are called





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  64. Monoecious plants have





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  65. Type of apomixis when a cell in the integument divides into an embryo





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  66. Protein synthesis takes place in the part of cell known as





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  67. When the plants are regenerated in vitro through the vegetative parts of the plant is known as





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  68. In cells the function of the mitochondria is





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  69. Selection is effective for traits which are governed by the





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  70. In cross pollinated species which of the following breeding methods should be used if there is predominance of additive gene action





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  71. An organism having a pair of identical alleles is called





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  72. Corn ear has grain rows





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  73. Most appropriate centre of origin of maize is





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  74. Maize plant inflorescence in normally





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  75. The re-examination of Darwin's theory in the light of discoveries of gene and chromosome is known as





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  76. The trait which does not express itself in F1 generation is called





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  77. In DNA molecule adenine pairs with the





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  78. Type of polyploidy having a chromosome number other than an exact multiple of





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  79. Nullisomic are





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  80. Seed produced from the foundation seed is called.





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  81. One seeded dry fruit with thin pericarp adherent to the seed is called





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  82. The tRNA brings the required ______________ to ribosomal RNA during the process of protein synthesis





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  83. If there is predominance of non additive gene action which of the following breeding method should be used





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  84. Selection is not effective for a trait which is governed by the





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  85. Compound inflorescence with pediceled flowers usually loose or irregular





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  86. Mature ovary wall around the ovule





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  87. Flower pollinated by wind is called





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  88. Selection is practiced in segregating population in F5 or F6





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  89. The ratio of the genotypic variance to the phenotypic variance refers to the





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  90. The DNA that has been made by combining the segments of DNA from two different organisms termed as





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  91. Pollination in line seed is accomplished by





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  92. Peanut belong to the family





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  93. Genome of the Brassica carinata





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  94. A good source of vegetable protein is in





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  95. Fertilization in plant in 1879 was first recognized by the





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  96. Heritable and non heritable variation was distinguished by the





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  97. Chromosome theory was proposed in the year





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  98. Mendel's work was rediscovered by three biologists Tschermark, deVries and Correns in





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  99. According to the blending theory hereditary factors are mixed and give rise to the





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