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Plant Breeding and Genetics Test II


Plant breeding, botony, biology, agriculture related questions and answers for FPSC, PPSC, PMS, CSS, NTS, SPSC and other tests, A complete guide for students and job seekers


Plant Breeding and Genetics Test II

Select one option out of four given options

  1. Maximum mutant varieties are evolved in;




  2. 1

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  3. In locern resistance to spotted aphid is associated with;




  4. 2

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  5. Vertical resistance is also known as;




  6. 4

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  7. Concept of gene for gene hypothesis developed in;




  8. 1

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  9. In rice brown plant hopper, has no preference for;




  10. 4

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  11. In cotton Jassids have no preference for;




  12. 4

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  13. Disease and insect resistance is governed by;




  14. 4

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  15. In wheat, example of durable insect resistance includes resistance to;




  16. 4

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  17. In barley resistance to cereal leaf beetle is associated with;




  18. 2

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  19. Drought is measured in term of;




  20. 4

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  21. Drought tolerance is associated with;




  22. 4

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  23. Under drought condition these is an increase in;




  24. 4

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  25. Drought resistance is associated with




  26. 4

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  27. Drought is indicated by;




  28. 4

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  29. Concept of ideotype is;




  30. 4

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  31. The term ideotype was coined by;




  32. 4

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  33. Basic chromosome number of wheat is;




  34. 2

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  35. Norine 10 is a source of dwarfing gene in;




  36. 1

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  37. In forage crops ideal plant type consist of;




  38. 1

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  39. De-Geo Woogen is a source of dwarfing gene in;




  40. 4

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  41. Heterosis can be fixed by




  42. 4

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  43. Heterobeltiosis is estimated over the;




  44. 2

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  45. Out breeding leads to reproduction in;




  46. 2

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  47. Haploid plants have produced by anther culture in tomato by;




  48. 1

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  49. Colchicum is extracted from;




  50. 2

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  51. Increased flower size has made tetraploidy important for




  52. 3

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  53. A nullisomic individual is represented by;




  54. 3

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  55. An individual lacking only one chromosome from the diploid set is refered as;




  56. 2

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  57. The change in chromosome number which involves the entire set of genome is known as;




  58. 2

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  59. Balckeselee reported the first case of monoploid in;




  60. 1

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  61. In primary trisomic the extra chromosome is;




  62. 3

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  63. A gene which exhibits higher mutation rate than others is refereed as;




  64. 3

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  65. Stadler first used X-rays for induction of mutation in;




  66. 4

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  67. Mutation was first discovered by;




  68. 3

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  69. The amount of the substance required to kill 50% of the test population is known as;




  70. 1

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  71. Erucic acid is found in;




  72. 3

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  73. In lucern toxic substance is found;




  74. 1

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  75. Neurotoxin is found in;




  76. 4

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  77. Nutritional quality breeding deals with genetic improvement in;




  78. 4

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  79. In pulses limiting amino acids include;




  80. 3

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  81. In cereals limiting amino acids are;




  82. 4

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  83. In green vegetables, the limiting amino acids are;




  84. 1

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  85. In maize source of high lysine is;




  86. 1

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  87. Soybean contains;




  88. 3

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  89. The term useful heterosis was first used by;




  90. 1

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  91. Dominance hypothesis of heterosis was first proposed by;




  92. 1

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  93. Top cross was first suggested by;




  94. 3

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  95. The term heterosis was coined by;




  96. 1

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  97. Heterosis can be fully exploited in the form of;




  98. 2

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  99. In allogamous species, a true breeding line obtained by continuous inbreeding is;




  100. 4

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  101. Heat, cold and frost resistance ideotype have been developed in;




  102. 4

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  103. The significance of difference among several means is tested with the help of;




  104. 1

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  105. Gametophytic self incompatibility system was first discovered by;




  106. 3

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  107. The ratio of the treatment variance to the error variance is known as;




  108. 2

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  109. The value of the regression and correlation is the same when the correlation between two variables is




  110. 1

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  111. Headquarters of the union for the protection of the new plant varieties is in;




  112. 4

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  113. In bhindi production of foundation seed needs the isolation distance




  114. 3

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  115. Certification is not required for;




  116. 2

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  117. Argemone mexicana is a;




  118. 1

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  119. In sunflower production of foundation seed requires as isolation;




  120. 1

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  121. The recommended ratio of male rows to the female rows in hybrid bajra production is;




  122. 1

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  123. Cuscuta is parasitic plant that don,t have;




  124. 1

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  125. Which one of the following is fruit;




  126. 3

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  127. Parthenocarpy is the production of;




  128. 3

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  129. Maturation of stamens and pistils at different times in the same flower is called




  130. 4

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  131. The smell in onion bulb is due to;




  132. 3

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  133. Fertilization in flowers occurs within the




  134. 2

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  135. In potato food is stored in




  136. 2

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  137. Dispersal of seeds by parachute mechanism is present in;




  138. 3

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  139. Which of the following is not a fruit;




  140. 2

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  141. In bisexual flower when the gynoecium mature earlier than the androceum it s called as




  142. 4

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  143. Which coins the term genetic load;




  144. 2

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  145. A bisexual flower which never open in its life span is called;




  146. 1

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  147. Which one is C4 crop plant;




  148. 4

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  149. Which one is C3 plants;




  150. 4

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  151. Synopsis occurs in;




  152. 3

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  153. The food in onion is stored in




  154. 4

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  155. Edible part of the pomegranate is;




  156. 1

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  157. Edible part of orange is;




  158. 2

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  159. Parthenogenesis is most commonly seen in;




  160. 4

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  161. Rum is distilled from;




  162. 4

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  163. Whisky is distilled from;




  164. 1

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  165. A healthy plant not setting seed may be due to;




  166. 4

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  167. Mutation breeding is mostly used in;




  168. 1

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  169. The ploidy level of commercially cultivated seedless watermelon is;




  170. 3

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  171. Red flower pea plant is crossed with the white flower pea plant, F1 is red with the flower color is;




  172. 1

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  173. If the leaf cells have eight chromosomes it is mostly likely that;




  174. 2

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  175. Where would you look for active cell division in a plant




  176. 4

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  177. The parry of cauliflower which is eaten is;




  178. 4

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  179. Three important laws of heredity proposed by the Mendel relates to




  180. 3

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  181. Ribosomes are the centers of;




  182. 3

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  183. Meiosis is significant because




  184. 3

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  185. If a plant heterozygous for tallness is selfed F2 generation have both tall and dwarf plant this proves the principle of;




  186. 2

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