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1) Each cell of the female gametophyte is hapoid except: a. Egg cell b. Synergid cells c. Antipodals cells d. Definitive nucleus
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2) Each gramme of water transpired absorbs ______ kj of latent heat from the leaf and its environment: a. 2.0 - 2.1 b. 2.2-2.3 c. 3.4-3.5 d. 2.7-2.8
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3) Each mature anther has: a. One pollen sac b. Two pollen sacs c. Three pollen sacs d. Four pollen sacs
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4) Each megaspore mother cell finally produces: a. Four megaspores b. Two megaspores c. Only one megaspore d. None of the above
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5) Each pollen mother cell produces four haploid cells as a result of: a. Mitosis b. Meiosis c. One mitosis and then meiosis d. None of the above
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6) Each stamen is differentiated into: a. Filament b. Anther c. Anther d. All of the above
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7) Electron microscope was invented by: a. Jansen b. Leeuwenhoek c. Knoll and Ruska d. None of the above
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8) Emasculation is: a. Removal of male parts from a bisexual flower b. Removal of female parts c. Removal of male and female parts d. None of the above
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9) Embryo-sac is: a. Male gametophyte b. Micro-gametophyte c. Saprophyte d. Female gametophyte
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10) Endosperm is store house for germinating embryo and it contains: a. Hormones b. Vitamins c. Enzymes d. All the above
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11) Epicalyx is the characteristic of the family: a. Gramineae b. Solanaceae c. Malvaceae d. Compositeae
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12) Epistasis should be crefully distinguished from dominance, which refers to non-additivity of alleles at: a. The same locus of a homologues chromosome b. Different loci of a homologous chromosome c. The same locus of non-homologous chromosomes d. Different locus of non-homologous chromosomes
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13) Who founded the cell theory? a. Robert Hooke b. Von Mohl and Nageli c. Schwann and Schleiden d. Gres and Malpigi
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14) Exchange of genetic material takes place between non-sister chromatids of homologous chromosomes during the: a. Four stand stage in prophase I b. Two strand stage in prophase I c. Metaphase I stage in meiosis d. Two strand stage in prophase II
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15) Female reproductive organ in the flower is: a. Calyx b. Corolla c. Stamens d. Carpals
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16) Flower colour in plants is a: a. Qualitative chracter b. Quantitative character c. Both of them d. None of them
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17) Flower is specialized: a. Shoots b. Leaf c. Stem d. Tendril
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18) Flowers having both androecium's and gynoecium's are said to be: a. Hermaphrodite b. Unisexual c. Staminate d. Pistilate
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19) For Hardy - Weinberg law to operate: a. The population should be large b. There should be open pollination c. There should be no selection d. all the above
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20) Formation of new genes takes place due to: a. Inversion b. Transduction c. Transversion d. Mutation
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21) Fruit of candytuft is known as: a. Legume b. Siliqua c. Silicula d. Capsule
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22) Fruit of pea is known as: a. Legume b. Follicle c. Siliqua d. Capsule
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23) Fruit of sunflower is: a. Caryopsis b. Samara c. Cypsela d. Cypsela
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24) Fruits of calotropis are: a. Legume b. Siliqua c. Capsule d. Follicle
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25) Fusion of the one sperm (male gamete) and definitive nucleus results in the formation of: a. Endosperm b. Embryo c. Saprophyte d. Zygote
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26) Who established that character is transmitted from generation to generation through chromosomes? a. Robert Brown b. Robert Hooke c. Nawaschin d. Strasburger and Hertwig
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27) Generally embryosac is: a. Generally embryosac is: b. Bisporic c. Tetrasporic d. Octosporic
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28) Genes are made up of: a. RNA only b. DNA only c. RNA nd DNA d. Proteins
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29) Genetics is the study of: a. Genes b. Gene interaction c. Heredity and variation d. DNA
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30) Genotype x Environment interaction would take place when there is/are: a. One genotype and two environments b. Two genotypes and one environment c. Three genotypes and one environment d. Two or more genotypes and two or more environments
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31) Germplasm means: a. A breeding method b. A collection of genetic material c. A new disease d. None of the above
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32) Gibberellins are now commercially used into increase sugarcane growth and sugar yields : a. China b. Hawaii c. Japan d. Korea
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33) Ginger and Turmeric are example of modified stem: a. Rhizome b. Tuber c. Bulb d. Corm
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34) Given that the somatic cromosome number of Triticum aestivum is 2n = 6x = 42, which one of the following pairs is correctly matched? a. Monosome b. Trusine c. Trusine d. Nullisome
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35) Mendel is famous for: a. Propounding the laws of inheritance b. Laws of limiting factors c. The theory of mutation d. The discovery of penicillin
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36) Group of plants with similar characteristics of any rank is termed: a. Taxon b. Species c. Genus d. Order
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37) Gynoecium or pistil in the female whorl differentiated into: a. Filament b. Style c. Stigma d. All of the above
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38) Holophytes growing on muddy swarmps form special vegetation known as: a. Hangrove forests b. Coniferous forests c. Evergreen forests d. Riparian forests
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39) Heritability may be defined as the: a. Interaction product of genotype with environment b. Sum total of hereditary material present in a species c. Degree of resemblance between the original and the selected plants d. Proportion of phenotypic variability, which is due to heredity
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40) Heterosis is commercially exploited in: a. Cross pollinated species b. Often cross-pollinated species c. Self-pollinated species d. Vegetatively propagated species
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41) Heterosis over the better parent is called as: a. Relative heteroisi b. Standard heterosis c. Pseudoheterosis d. Heterbeltiosis
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42) How many cells will be produced from a cell if the cell divides meiotically? a. 1 b. 2 c. 3 d. 4
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43) Hugo de Vries, who defined the 'mutation', was: a. Dutch Botanist b. French Bacteriologist c. English Botanist d. Russian Biologist
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44) Hybrid seeds can be produced through open pollination with the use of: a. Inbreds b. Clones c. Pure lines d. Male sterile lines
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45) Hydrilla is a: a. Hydrophyte b. Mesophyte c. Hygrophyte d. Xerophyte
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46) ICRISAT deals with: a. Cotton b. Maize c. Maize d. Wheat
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47) If a character is cytoplasmically controlled then: a. The progeny resembles female parent b. The progeny resembles male parent c. It's segregation of 3:1 is observed in F1 d. 15:1 segregation in F1
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48) If a dihybrid is test crossed, the phenotypic ratio of progeny will be: a. 9:3:3:1 b. 9;3;4 c. 1:1:1:1 d. 15;1
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49) If a dihybrid without genic interaction is selfed the following ratio is obtained in F2: a. 1:1:1:1 b. 9:3:3:1 c. 9;7 d. 9;6;1
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50) If a membrane allows the passage of both solvent and solute molecules it is said to be: a. Non-permeable b. Impermeable c. Semi-Permeable d. Permeable
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