1) The mechanism of male sterility in self-pollinated crops can be successfully utilised to obtain: a. Selfed seed b. Mutated seed without radiation treatment c. Hybrid seed without emasculation d. Sterile seed
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2) The mendel's laws of inheritance were rediscovered in 1900 by: a. Bateson and Punnet b. Beadle, Tatum and Leader-berg c. Watson and Crick d. Correns, de Varies and Tschermak
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3) The minute scaly outgrowths borne at the upper end of the leaf sheath, as in Gramineae are called: a. Bract b. Bracteole c. Stipule d. Ligule
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4) The mode of arrangement of ovules in the cavity of ovary is known as: a. Pollination b. Aestivation c. Placenatation d. Fertilization
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5) Which of the following breeding procedures are not used for producing new varieties of self-pollined crop? a. Recurrent selection b. Mass selection c. Pure line selection d. Hybridization
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6) Which is the monoecious plant? a. Maize b. Datepalm c. Rice d. Mango
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7) The net movement of a substance from an area of its own high concentration into another area of lesser concentration as rsult of kinetic energy of molecules is called: a. Diffusion b. Osmosis c. Imbibition d. Plasmolysis
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8) The normal eye colour in Drosphila is red. But mutants occur having white eye and also different shades ranging between white and red which are all recessive to red, while white colour is recessive to all others. This phenomenon is due to: a. Pseudodominance b. Pseudoallelism c. Codominance d. Polygenes
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9) The nucleus of the cell was first discovered by: a. Robert Brown b. Robert hHooke c. Strasburger d. Boveri
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10) The necleus of the functional megaspore divides: a. Meiotically b. Asexually c. Apomictically d. Mitotically
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11) The number of chromosome in common wheat is: a. 36 b. 38 c. 42 d. 48
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12) The number of stamens is indefinite in: a. Cruciferae b. Solanaceae c. Papillionaceae d. Malvaceae
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13) The nutritive tissue, which is infact, a remnant of the nucleus to called: a. Endosperm b. Perisperm c. Yolk d. None of the above
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14) The seeded fruit of rice or maize grain is called: a. Berry b. Pepo c. Siliqua d. Caryopsis
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15) The only force responsible for the movement of water through a membrane is: a. Molecular activity b. Hydrostatic pressure c. Osmotic pressure d. All the above
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16) The ovary of family liliaceae is: a. Trilocular superior with axile placentation b. Trilocular inferior with parietal placenation c. Trilocular inferior with basal placentation d. Trilocular superior with free central placentation
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17) The particles of hemicolloides have size (diameter) round about: a. Less than 1 mu b. Between 1 mu and 100 mu c. 1 mu d. More than 100 mu
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18) The phenomenon is called misogamy, when the tube enters into the embryo sac through: a. Micropyle b. Chalaza c. Integuments d. None of the above
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19) The physical basis of heredity is termed as: a. Gene pool b. Gene frequency c. Germplasm d. None of the above
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20) The place on the stem or branch where one or more leaves arise is known as: a. Internode b. Node c. Apex d. Sheath
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21) The placentation is mustard is: a. Marginal b. Parietal c. Axile d. Basal
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22) The plant that grow in very dry places and can withstand a prolonged period of drought uninjured are: a. Hydrophytes b. Hygrophytes c. Mesophytes d. Xerophytes
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23) The plant, which is growing in saline soils or saline water with preponderance of soil in it, is said: a. Mesophytes b. Xerophytes c. Hygrophytes d. Halophytes
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24) The plants, which grow in water or in very wet places, are a. Hydrophytes b. Hygrophytes c. Mesophytes d. Epiphytes
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25) The plants, which grow in water deserts, are called: a. Mesophytes b. Hydrophytes c. Xerophytes d. Halophytes
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26) The plants, which occur in moist shady places in forests or in the moist soil near waterlogged localities are: a. Hydrophyte b. Hygrophytes c. Xerophytes d. Mesophytes
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27) The plasma membrane is: a. Impermeable membrane b. Semi-permeable c. Permeable d. None of the above
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28) The point of attachment of the body of the ovule is its funicle is known as: a. Chalaza b. Raphe c. Hilum d. Stalk
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29) The pollen along with pollen tube is known as: a. Microspore b. Pollengrain c. Megaspore d. Male gametophyte
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30) Which is the dioecious plant? a. Maize b. Marigold c. Vallisneria d. Rice
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31) The pressure responsible for pushing the membrane against the cell wall is termed as: a. Osmotic pressure b. Suction pressure c. Wall pressure d. Turgor pressure
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32) The process of formation of eggs in animals is called: a. Oogenesis b. Telophase c. Oogonium d. None of them
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33) The process of formation of sperms in animals is known as: a. Spermatogonium b. Spermatogenesis c. Spematid d. None of them
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34) The process of guttation is due to: a. Leaf suction b. Excess transpiration c. Root Pressure d. Wall Pressure
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35) The process of making the expression of a non-allelic gene by another gene or gene pair is known as: a. Epistasis b. Hypostasis c. Nobilisation d. None of the above
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36) The process of megasporogenesis occurs in: a. Embryosac b. Egg cell c. Pollensac d. Ovule
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37) The process, double fertilization was first discovered by: a. Nawaschin b. Strasburger c. Robert Brown d. Hugo de Vries
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38) The production of double cross hybrid in maize was first suggested by: a. Shull b. East c. Jones d. Hull
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39) The production of double cross hybrid in maize was first suggested by: a. Megasprogenesis b. Microsporgensis c. Gametogenesis d. Sporogenesis
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40) The production of sperms is known as: a. Megagametogenesis b. Microsporogenesis c. Microgametogenesis d. Megasporogenesis
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41) The proportion of one allele as represented in a breeding population is known as: a. Gene b. Gene pool c. Both of the above d. None of the above
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42) The provision of light of shorten wavelength at the same time as longer red wavellength _______ photosynthesis: a. Maintains b. Enhances c. Reduces d. Does not affect
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43) The raw materials required for photosynthesis in vascular plants are: a. CO2 and water b. CO2, water and mineral c. CO2, water, mineral salts and chlorophyll d. CO2, water and mineral salt
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44) The removal of apical buds and young leaves ______ branching. a. Decreases b. Increases c. Maintains d. No effect
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45) The replication of DNA is: a. Conservative b. Non-conservative c. Semi-conservative d. Direpersive
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46) Which is a common method used in cross-pollinated crops? a. Mass selection b. Bulk method c. Pure line method d. Pedigree method
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47) The science dealing with variation and heredity is called: a. Immunology b. Cytology c. Genetics d. Radiology
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48) The science, which deals with the study of interrelationship between the living organisms and the various factors of the environment surrounding them as: a. Botany b. Biology c. Ecology d. Zoology
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49) The scientific name of bread wheat is: a. T. durum b. T. dicoccum c. T. aestivum d. T. monecoccum
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50) The scientific name of maize is: a. Glycine max b. Hordeum vulgare c. Zea mays d. None of them
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