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;




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




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  5. Vertical resistance is also known as;




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  7. Concept of gene for gene hypothesis developed in;




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




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  11. In cotton Jassids have no preference for;




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  13. Disease and insect resistance is governed by;




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




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




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  19. Drought is measured in term of;




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  21. Drought tolerance is associated with;




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  23. Under drought condition these is an increase in;




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  25. Drought resistance is associated with




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  27. Drought is indicated by;




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  29. Concept of ideotype is;




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  31. The term ideotype was coined by;




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  33. Basic chromosome number of wheat is;




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




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  37. In forage crops ideal plant type consist of;




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




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  41. Heterosis can be fixed by




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  43. Heterobeltiosis is estimated over the;




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  45. Out breeding leads to reproduction in;




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




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  49. Colchicum is extracted from;




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  51. Increased flower size has made tetraploidy important for




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  53. A nullisomic individual is represented by;




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




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




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  59. Balckeselee reported the first case of monoploid in;




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  61. In primary trisomic the extra chromosome is;




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




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




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  67. Mutation was first discovered by;




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




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  71. Erucic acid is found in;




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  73. In lucern toxic substance is found;




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  75. Neurotoxin is found in;




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  77. Nutritional quality breeding deals with genetic improvement in;




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  79. In pulses limiting amino acids include;




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  81. In cereals limiting amino acids are;




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




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  85. In maize source of high lysine is;




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  87. Soybean contains;




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  89. The term useful heterosis was first used by;




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  91. Dominance hypothesis of heterosis was first proposed by;




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  93. Top cross was first suggested by;




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  95. The term heterosis was coined by;




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




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




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




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




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  105. The experimental design which controls fertility variation in two direction is known as;




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  107. The experimental design which controls fertility variation in one direction is known as;




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  109. Gametophytic self incompatibility system was first discovered by;




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




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




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




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  117. Plant breeders rights are rights granted to the breeders that give exclusive control over the propagating material including,




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




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  121. Certification is not required for;




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  123. Argemone mexicana is a;




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




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




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




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  131. Which one of the following is fruit;




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  133. Parthenocarpy is the production of;




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




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  137. The smell in onion bulb is due to;




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  139. Fertilization in flowers occurs within the




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  141. In potato food is stored in




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




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  145. Which of the following is not a fruit;




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




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  149. Which coins the term genetic load;




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




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  153. Which one is C4 crop plant;




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  155. Which one is C3 plants;




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  157. Synopsis occurs in;




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  159. The food in onion is stored in




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  161. Edible part of the pomegranate is;




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  163. Edible part of orange is;




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  165. Parthenogenesis is most commonly seen in;




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  167. Rum is distilled from;




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  169. Whisky is distilled from;




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




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  173. Mutation breeding is mostly used in;




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




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




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




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




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  183. How may mitosis division will take place to produce 512 cells from single parent cell




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  185. What will be the gametic constitution of the offspring of a cross of an individual heterozygous (Aa) for an allele




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  187. The parry of cauliflower which is eaten is;




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




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  191. Ribosomes are the centers of;




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  193. If a heterozygous tall plant is crossed with homozygous dwarf plant the proportion of dwarf progeny is;




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  195. Meiosis is significant because




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




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  199. How may times mitotic divisions must be occur in the cell of the root tip to from 256 cells.




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