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1) Production of pyrogens is a ________ phenomenon a. Protective b. Destructive c. Constructive d. Aggressive
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2) Name the type of adaptation from the following that is responsible for shivering thermogenesis a. Structural b. Physiological c. Behavioral. d. None of these
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3) In asexual reproduction offspring are produced by a. Meiosis b. Mitosis c. Both a and b d. None of these
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4) Which method is of asexual reproduction? a. Sporulation b. Fission c. Apomixis d. All of these
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5) Gametes in animals are produced by a. Mitosis b. Meiosis c. Fission d. Apomixis
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6) In sexual reproduction, plants have diplohaplontic life cycle with alternating a. Diploid sporophyte and haploid gametophyte generations b. Haploid sporophyte and diploid gametophyte generations c. Diploid sporophyte and diploid gametophyte generations d. Haploid sporophyte and haploid gametophyte generations
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7) Which statement is correct? a. In heteromorphic generations are vegetatively dissimilar b. In isomorphic generations are vegetatively dissimilar c. In isomorphic generations are vegetatively similar d. Both a and c
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8) In parthenocarpy which levels are high in ovaries a. Gibberalins b. Cytokinins c. Auxins d. All of these
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9) Seeds are dormant in conditions of a. Water scarcity b. Low temperature c. Harsh winters d. All of these
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10) Developing seeds are rich source of a. Auxins b. Gibberellins c. Cytokinins d. All of these
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11) Which statement is incorrect? a. Climacteric is burst of respiratory activity in fruit ripening b. It is associated with ethane production c. It helps in fruit set d. It helps in fruit ripening
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12) What is critical in photoperiodism? a. Length of light period b. Length of dark period c. Both a and b d. None of these
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13) Which one is not a day neutral plant? a. Cucumber b. Maize c. Cotton d. Tobacco
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14) Which statement is incorrect? a. In short day plants red light prevents flowering b. Henbane is a short day plant c. In long day plants for red light promotes flowering d. Leaf unrolling occurs in grasses
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15) In biennials and perennials, low temperature stimulus is not received by a. Shoot apex of mature stem b. Embryo of the seed c. Leaves of the plants d. None of the above
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16) Development of an egg into zygote without fertilization is called a. Parthenogenesis b. Apomixes c. Parthenocarpy d. None of these
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17) In which organism males are haploid a. Aphids b. Honey bee c. Mosquito d. Butterfly
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18) In cloning, nucleus is introduced into a. Somatic cell b. Egg cell c. Sperm cell d. None of these
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19) Which characteristic is not of identical twins? a. Produced by separation of two blastomeres b. Have different genetic makeup c. Produced asexually d. Produced when embryo is at two cell stage
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20) Viviparous animals are those in which a. Internal fertilization with external development in eggs b. Internal fertilization with internal development inside female body c. Internal fertilization and internal development followed by hatching of egg d. External fertilization with external development
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21) Example of ovoviviparous a. Reptiles b. Mammals c. Duckbill platypus d. Frog
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22) Sertoli cells a. Provide liquid medium to cells in testes b. Provide protection and nourishment to cells c. Secrete testosterone d. Both a and b
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23) 2nd meiotic division in oocyte is completed a. When ovum is discharged from the ovary b. When oocyte is fertilized by sperm c. Just before fertilization d. Before the onset of menstruation
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24) Fertilization of ovum occurs a. In proximal part of oviduct b. In distal part of oviduct c. In uterus d. In ovary
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25) Duration of menstrual cycle is a. 25 days b. 26 days c. 27 days d. 28 days
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26) Progesterone is secreted by a. Ripening follicles b. Uterine epithelium c. Corpus luteum d. Fertilized egg
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27) Total gestation period is about a. 350 days b. 200 days c. 280 days d. 320 days
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28) Fetus is human embryo from the beginning of a. 2nd month b. 3rd month c. 4th month d. 5th month
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29) Average loss of blood during birth is about a. 250 cm3 b. 350 cm3 c. 450 cm3 d. 150 cm3
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30) Which statement is incorrect? a. Syphilis is caused by Treponema pallidum b. Genital herpes produces genital soreness and ulcers c. Syphilis affects eyes, bones, joints, CNS d. Gonorrhea is caused by gram negative bacterium
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31) The animals in which there are separate male and female individuals are called a. Unisexual b. Bisexual c. Hermaphrodite d. None of these
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32) In which of the following animals, placenta is formed? a. Prototherians b. Metatherians c. Eutherians d. None of these
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33) Which of these cycles operate in human females? a. Oestrous cycle b. Menstrual cycle c. Both of these d. None of these
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34) During birth which of following act as birth canal? a. Oviduct b. Uterine tube c. Uterus d. Vagina
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35) Nutrition to egg in ovary is provided by a. Germ cells b. Follicle cells c. Milk cells d. None of these
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36) End of menstrual cycle in old age is called a. Andropause b. Menopause c. Gametopause d. All of these
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37) Critical day length for cocklebur is a. 8.5 hrs b. 10-11 hrs c. 13-14 hrs d. 15.5 hrs
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38) In asexual reproduction offspring are genetically a. Identical to the parents b. Non identical to the parents c. Identical if mutations do not occur. d. Both a and c
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39) Evolution of pollen tube is parallel to the evolution of a. Leaf b. Plant c. Flower d. Seed
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40) Resumption of normal growth by a dormant embryo is called a. Seed dormancy b. Germination c. Fruit set d. Fruit ripening
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41) ________ is a quiescent form of phytochrome. a. P630 b. P660 c. P730 d. P760
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42) Apomixis is a form of a. Parthenocarpy b. Vernalization c. Parthenogenesis d. None of these
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43) Period between two consecutive divisions is called a. Interphase b. Resting phase c. Mitotic phase d. Cell cycle
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44) DNA is synthesized and chromosome number is doubled in a. G1 phase b. S phase c. G2 phase d. G0 phase
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45) In case of neurons, post mitotic cell escapes cell cycle and remain in _______ phase whthout proliferating further a. G0 phase b. G1 phase c. G2 phase d. S phase
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46) Which statement is incorrect? a. In human, cell cycle is about 24 hrs b. Mitosis takes 30 min c. G2 5.5 hrs d. Yeast cell only 90 min
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47) Mitosis occurs in a. Diploid cells only b. Haploid cells only c. Both diploid and haploid cells d. Monoploid cells
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48) Microtubules are composed of a. Action protein b. Actin and myosin proteins c. Sphingomyelin and tubulin d. Tubulin protein and traces of RNA
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49) From each pair of centrioles ________ sets of microtubules originate a. 2 b. 3 c. 4 d. 5
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50) Mitotic apparatus in animals is formed by a. Aster and spindle b. Polar and kinetochore microtubules c. Spindle and RNA d. Spindle only
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