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1) Growth process is a. Irreversible b. Reversible c. Sometimes reversible sometimes irreversible d. Temporary
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2) A plant has a growth pattern called a. Closed growth b. Open growth c. In between the two d. None of these
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3) Speed of growth is a. Rapid throughout b. Slow throughout c. First slow then rapid then slow again d. First rapid then slow
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4) Meristems are group of cells that a. Allow the surrounding region to divide b. Provide nutrition c. Help in movement d. Retain the potential to divide
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5) Higher plants grow through a. Growing points b. Whole plant body is capable of growing c. Only roots grow d. None of these
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6) Meristems are of a. Two types b. Three types c. Four types d. Five types
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7) Apical meristems are located at a. Tips of leaves b. Tips of flowers c. Tips of roots and stems d. Tips of roots only
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8) Function of intercalary meristems is a. Increase in length b. Increase in diameter c. Production of leaves and flowers d. None of these
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9) Lateral meristems are present in a. All plants b. Gymnosperms and dicots c. Monocots d. In aquatic plants only
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10) Intercalary meristems are of a. Permanent nature b. Temporary nature c. Some are permanent some temporary d. None of these
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11) Determinate growth is a. Growing continuously b. Fluctuating growth c. Grow to certain size and then stop d. Vegetative roots and shoots grow by
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12) Vegetative roots and shoots grow by a. Determinate growth b. Primary growth only c. Indeterminate growth d. None of these
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13) In plants growth is of a. Four types b. Five types c. One type d. Two types
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14) Secondary growth is actually a. Extension of plant body b. Increase in thickness c. Production of leaves and flowers d. None of these
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15) Cambium are examples of a. Apical meristems b. Intercalary meristems c. Lateral meristems d. None of these
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16) Growth of multicellular plants occur in a. Two phases b. Three phases c. Five phases d. Four phases
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17) In multicellular plants cell division occur by a. Binary fission b. Conjugation c. Meiosis d. Mitosis
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18) Cells elongate by a. Mitosis b. Uptake of water c. Stretching d. Formation of cell wall
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19) Plasticity of cell wall increases during a. Cell maturation b. Cell elongation c. Cell differentiation d. Cell division
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20) Cells of fibers and tracheids elongate during a. Phase of cell division b. Phase of cell elongation c. Phase of cell maturation d. Phase of cell differentiation
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21) During cell differentiation a. Walls of cells become thick b. Walls of cells become pitted c. Both of these d. None of these
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22) Maximum optimum temperature for growth of plants is a. 30-40 degree C b. 25-30 degree C c. 10-20 degree C d. 20-40 degree C
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23) Which one is incorrect a. Red light favours elongation of cells b. Blue light retards cell enlargement c. UV rays retards cell elongation d. UV rays retard cell division
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24) Light duration plays a role in inducing or suppressing flowering, phenomenon is called a. Photosynthesis b. Photoperiodism c. Phototropism d. Photogenetics
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25) Root primordial develop from a. Apical meristems b. Intercalary meristems c. Pericycle d. Epidermis
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26) Growth of apical buds suppressing lower axillary buds is a. Lateral dominance b. Compensatory dominance c. Apical dominance d. Both a and b
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27) In chicks fertilization is a. Internal b. External c. Both a and b d. None of these
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28) Incubation temperature for chick is a. 20-30 degree C b. 40-45 degree C c. 36-38 degree C d. 25-35 degree C
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29) Which one is incorrect? a. Epiblast is presumptive ectoderm and mesoderm b. Hypoblast is presumptive endoderm c. Hypoblast is presumptive mesoderm d. Upper layer of cells in blastoderm is epiblast
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30) Peripheral part of blastoderm making contact with yolk is called a. Area pellucida b. Area opaca c. Blastocoel d. Area plana
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31) Cavity formed between somatic and splanchnic mesoderm is called a. Gastrocoele b. Blastocoele c. Coelom d. Neurocoele
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32) Mechanism of development was explained by a. Hans Dietrisch b. Spemann c. Both a and b d. Haemmerling
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33) Which statement is correct about gray crescent? a. A pigmented area that appears at time of fertilization b. A pigment free area that disappears at the time of fertilization c. A hyperpigmented area that is present in the embryo d. A pigment free area that appears at time of fertilization
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34) Which statement is incorrect? a. Fertilized egg of an ascidian contains cytoplasm of four colours b. Yellow cytoplasm gives rise to gut c. Grey equatorial cytoplasm gives rise to notochord. d. Grey vegetal cytoplasm gives rise to gut
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35) Acetabularia crenulata has a. Irregular shaped cap b. Regular shaped cap c. Irregular while young and regular while adult d. No cap
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36) Which statement is correct? a. Ectodermal cells have effect on mesodermal cells to induce differentiation b. Mesodermal cells stimulate ectodermal cells to form nervous system c. Endodermal cells stimulate ectodermal cells d. All are correct
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37) Negative physiological changes in our body is called a. Teratology b. Aging c. Regeneration d. Embryonic induction
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38) Study of aging is a. Teratology b. Embryology c. Gerontology d. Pathology
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39) The ability to regain or recover the lost or injured part of body is a. Aging b. Regeneration c. Abnormal development d. Primary induction
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40) Among invertebrates who possess great power of regeneration a. Arthropods b. Molluscs c. Sponges d. Nematodes
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41) Which statement is incorrect? a. Earthworm can regenerate its head b. Salamander can regenerate its limbs c. Lizard can regenerate its head d. Man can regenerate his skin
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42) Growth is basically an increase in a. Nuber of cells b. Size of cells c. Both of these d. None of these
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43) The stage of rapid cell division just after fertilization is a. Organogenesis b. Cleavage c. Gastrulation d. Growth
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44) The German scientist Spemann worked on differentiation in a. 1924 b. 1929 c. 1915 d. 1940
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45) Inducer substances are produced by a. Notochord b. Somite c. Archenteron d. Coelom
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46) What is the feature of cells in gastrulation? a. Division b. Migration c. Differentiation d. All of these
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47) Vertebral column is formed from a. Ectoderm b. Endoderm c. Mesoderm d. None of these
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48) Liver and pancreas arise from a. Foregut b. Midgut c. Hindgut d. None of these
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49) Hemophilia is a. Excessive bleeding due to defective gene on sex chromosome b. Due to extra sex chromosome c. Due to structural deviation during organogenesis d. Due to nutritional deficiencies
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50) In which of the following cases, genotypic and phenotypic ratio will remain same in F2 generation a. Law of independent assortment b. Law of Segregation c. Test cross d. Incomplete dominance.
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