Total Number of Question/s - 4195

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  • 1. Reproduction in Organisms - Quiz


    1. In Vorticella, the total number of microunclei formed at the end of pre-zygotic nuclear division in female gamont is
    a) 4
    b) 6
    c) 8
    d) 5

    2. One of the methods of vegetative propagation is by cutting. In woody plants roots are readily formed
    a) If branchs are cut from juvenile stage
    b) If older branches are cut from adult stage
    c) If younger branchs are cut from adult stage
    d) There is no difference

  • 2. Sexual Reproduction in Flowering Plants - Quiz


    1. Unisexuality of flower prevents
    a) Geitonogamy, but not xenogamy
    b) Autogamy and geitonogamy
    c) Autogamy, but not geitonogamy
    d) Both geitonogamy and xenogamy

    2. In plants , in nature, autogamy is avoided since the seeds produced
    a) Are fewer in number
    b) Do not germinate succesfully
    c) Do not produce healthy plants
    d) All the above

  • 3. Human Reproduction - Quiz


    1. In the human female, menstruation can be deferred by the administration of
    a) LH only
    b) Combination of FSH and LH
    c) Combination of estrogen and progesterone
    d) FSH only

    2. Eggs of reptiles and birs are
    a) Alecithal
    b) Isolecithal
    c) Telolecithal
    d) Homolecithal

  • 4. Reproductive Health - Quiz


    1. Surigical removed or cutting and ligation of the ends of oviduct is known as
    a) Tubectomy
    b) Oviductomy
    c) Vasectomy
    d) Ovarioctomy

    2. Foetal sex can be determined by examining cells from the amniotic fluid by looking for
    a) Barr bodies
    b) Autosomes
    c) Chiasmata
    d) Kinetochore

  • 5. Principles of Inheritance and Variation - Quiz


    1. In garden pea, yellow colour of cotyledons is dominant over green and round shape of seed is dominant over wrinkled. When a plant with yellow and round seeds is crossed with a plant having yellow and wrinkled seeds, the progeny showed segregation for all the four characters. The probability of obtaining green round seeds in the progeny of the cross is
    a) $\frac{1}{4}$
    b) $\frac{1}{8}$
    c) $\frac{1}{16}$
    d) $\frac{3}{16}$

    2. If a normal woman marries a colourblind man, their
    a) All sons will be coloublind and daughters normal
    b) All daughters be colourblind and sons normal
    c) All children will be normal
    d) All children will be colourblind

  • 6. Molecular Basis of Inheritance - Quiz


    1. Which of the following discoveries resulted in a Nobel Prize
    a) Genetic engineering
    b) X-rays induce sex-linked recessive lethal mutations
    c) Cutoplasmic inheritance
    d) Recombination of linkes genes

    2. Jacob and Monad studies lactose metabolism in E. coli and proposed operon concept, which is applicable for
    a) Prokaryotes
    b) Eukaryotes
    c) Protozoanes
    d) All of these

  • 7. Evolution - Quiz


    1. Which one of the following in birds, indicates their reptilian ancestry
    a) Two special chambers crop and gizzard in their digestive tract
    b) Eggs with a calcareous shell
    c) Scales on their jind limbs
    d) Four chambered heart

    2. Who gave the theory of pangenesis
    a) Lamarck
    b) Wallace
    c) Heackle 
    d) Darwin

  • 8. Human Health and Disease - Quiz


    1. The cell-mediated immunity inside the human body is carried out by
    a) Erythrocytes
    b) T-lymphocytes
    c) B-lymphocytes
    d) Thrombocytes

    2. Antibodies are produced by
    a) Erythrocytes
    b) Thrombocytes
    c) Monocytes
    d) Lymphocytes

  • 9. Strategies for Enhancement in Food Production - Quiz


    1. Which one of the following chemical induces polyploidy in plant cells
    a) 2,4-dichlorophenoxy acetic acid
    b) Rifampicin
    c) Cytokinine
    d) Colchine

    2. To obtain virus-free healthu plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken
    a) Both apical and axillary meristems
    b) Epidermis only
    c) Apical meristem only
    d) Palisade parenchyma

  • 10. Microbes in Human Welfare - Quiz


    1. Match the microbes in column I with their commercial industrial products in column II and choose the correct answer
    Column I Column II
    A. Aspergillus niger 1. Ethanol
    B.  Clostridium butylicum 2. Stains
    C. Saccharomyces cerevisiae 3. Citric acid
    D. Trichoderma polysporum 4. Butyric acid
    E. Monascus purpureus 5. Cyclosporin A

    a) A - 4, B - 5, C - 2, D - 1, E - 3
    b) A - 5, B - 4, C - 1, D - 2, E - 3
    c) A - 3, B - 4, C - 1, D - 5, E - 2
    d) A - 3, B - 4, C - 5, D - 1, E - 2
    e) A - 2. B - 3, C - 4, D - 5, E - 1

    2. The organism used for alcohol fermentation is
    a) Penicillium
    b) Pseudomonas
    c) Aspergillus
    d) Saccaromyces

  • 11. Biotechnology : Principles and Processes - Quiz


    1. The figure below is the diagrammatic representation of the E.coli vector pBr 322. Which one of the given options correctly identifies its certain omponent(s)

    a) Ori-Original restriction enzyme
    b) Rop-reduced osmotic pressure
    c) Hind III, EcoRI - selectable markers
    d) ampR, tetR - antibiotic resistance genes

    2. In recombination vector used is
    a) Protein
    b) Agrobacterium tumefaciens
    c) Nucleic acid
    d) Cellulose

  • 12. Biotechnology and its Applications - Quiz


    1. Human insulin is being commercially produced from a transgenic species of
    a) Rhizobium
    b) Saccharomyces
    c) Escherichia
    d) Mycobacterium

    2. A genetically engineered micro-organism used sucessfully in bioremedication of oil spills is a species of
    a) Pseudomonas
    b) Trichoderma
    c) Xanthomonas
    d) Bacillus

  • 13. Organisms and Populations - Quiz


    1. Which of the following statements regarding species independence are true
    A. An association of two species where one is benefited and other remains unaffected is called mutualism
    B. An interspecific association where both paterns derive benefit from each other is called commensalism
    C. A direct food relation between two species of animals in which one animals kills and feeds on another is referred as predation
    D. A relationship between two species of organism where both the partners are benefitted from each other is called symbiosis
    a) A and B only
    b) C and D only
    c) A and C only
    d) C and C only
    e) B and D only

    2. Niche overlap indicates
    a) Sharing of one or more resouirces between the two specis
    b) Mutulism between two species
    c) Active cooperation between two species
    d) Two different parasites on the same host

  • 14. Ecosystem - Quiz


    1. In an ecosystem in abiotic components which of the following occur
    a) Flow of energy
    b) Cycling of materials
    c) Consumers
    d) Flow of energy and cycling of materials

    2. Pyramid of energy in a pond ecosystem is always
    a) Inverted
    b) Upright
    c) Irregular
    d) Linear

  • 15. Biodiversity and Conservation - Quiz


    1. Rajaji National park is situated in
    a) Tamil nadu
    b) Karnataka
    c) Uttranchal
    d) Rajasthan

    2. Which one of the following shows maximum genetic diversity in India
    Which one has the largest species variety in India
    a) Mango
    b) Groundnut
    c) Rice
    d) Maize

  • 16. Environmental Issues - Quiz


    1. Heat islands are produced as
    a) Air pollution
    b) Water pollution
    c) Land pollution
    d) All the above

    2. Eutrophication results in the reduction of
    a) Dissolved hydrogen
    b) Dissolvef oxygen
    c) Mineral salts
    d) None of these

  • 17. Common Human Diseases - Quiz


    1. The process of spreading the canerous cells to distnt site is known as
    a) Hyperstasis
    b) Metastasis
    c) Parastasis
    d) Parasitesis

    2. The main reason why antibiotics could not solve all the problems of bacteria mediated diseases is
    a) Insensitivity of the individual following prolonged exposure to antibiotics
    b) Inactivation of antibiotics by bacterial enzymes
    c) Decreased efficiency of the immune system
    d) The development of mutant stains resistant to antibiotics

  • 18. Animal Husbandry - Quiz


    1. The ova are released by hormone induction and fertilization by artificial insemination and then embryo is stored at 40C for several years. This is the technique known as
    a) Artificial insemination
    b) Embryo transplanattion
    c) Super ovulation
    d) Preservation of embryo

    2. The world highly prized wool yielding paschima breed is
    a) Sheep
    b) Goat
    c) Sgoat-sheep
    d) Kashmir sheep - Afgan sheep cross

  • 19. Bioenergy - Quiz


    1. Which one of the following is an example of carrying out biological control of pests/diseases using microbes
    a) Trichoderma sp against certain plant pathogens
    b) Nucleopolyhedrovirus against white rust in Beassica
    c) Bt-cotton to increase cotton yield
    d) Lady bird beetle against aphids in mustard

    2. Biofertilizers include
    a) Nitrogen fixing bacteria
    b) Nitrogen fixing cyanobacteria
    c) Both bacteria and cynaobacteria
    d) Bavteria, cyanobacteria and mycorrhizal fungi

  • 20. Conservation of Natural Resources - Quiz


    1. More than 70% of worlds freshwater is contained in
    a) Polar ice
    b) Glaciers and mountains
    c) Antartica
    d) Greenlands

    2. American water plant that has become a troublesome water weed in India is
    a) Cyperus rotundus
    b) Eichhormia crassipes
    c) Trapa latifolia
    d) Trapa bispinosa

  • 21. Drug Addiction, Mental & Community Health - Quiz


    1. Smoking addiction is harmful because it produces polycyclic aromatic hydrocarbons, which cause
    a) Reduction in oxygen transport
    b) Increase in blood pressure
    c) Cancer (Lung)
    d) Retardation of growth of foetus

    2. Tay Sachs disease is caused by deficiency is
    a) Hexosaminidase
    b) Glucocerebrosidase
    c) Galactocerebrodidase
    d) Ceramidase

  • 22. Biome and Biogeochemical Cycle - Quiz


    1. Which one of the following is commonly found in temperate coniferous forest
    a) Quercus
    b) Dipterocarpus
    c) Shorea roubusta
    d) Pinus wallichiana
    e) Prosopis

    2. Which is referred to as Lungs of the Planet Earth
    a) Western ghat
    b) Lake Victoria
    c) Green land
    d) Amazon rainforest
    e) Himalayas