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Life Science Mock Test CSIR NET Exam - Part 8







This Quiz is posted with the sole aim of guiding the aspirants of CSIR-NET Exam to the path of success. To sharpen the edges of your own intelligence and practice, in a structured and concrete manner to ensure you definite Success in your endeavor and will Pave your way for a successful career in Teaching (or) Research Profession . All the very best...... Knock the door of success......




  1.  In the antigen antibody reaction the association

    constant (Ka) at equilibrium is represented by


    1.  [Ag Ab complex]

    2.  [Free Ag] [Free Ab]

    3.  [Ag Ab complex /[free Ag] [Free Ab]

    4.  [Free Ag] [Free Ab] / [Ag Ab complex]







  2. Typhoid is caused by ____________.


    1.  Pseudomonas sp

    2.  Bacillus

    3.  Staphyoeoccus

    4.  Salmonella typhi







  3. Cell proliferation is generally measured by ___________.


    1.  Chromium release assay

    2.  Chemotaxis assay

    3.  Thymidine uptake assay

    4.  ELISA







  4. Predators can influence the structure of a community because their removal from the community causes a catastrophic change in the composition and structure of the rest of the community. What are the predators called because of this?


    1.  Coevolutionists

    2.  Oppourtunists

    3.  Keystone species

    4.  Edge species







  5. Pollination is best defined as ________.


    1.  Growth of pollen tube in ovule

    2.  Visiting flowers by insects

    3.  Germination of pollen grains

    4.  Transfer of pollen from another to stigma







  6.  For climax which statement is INCORRECT?


    1.  Dependency on detritious food chain increases

    2.  Exploitation competition is more than normal

    3.  Vertical stratification of community increases

    4.  Number of perennial species increases







  7.  Total energy available for work at equilibrium is termed as _____.


    1.  Enthalpy

    2.  Activation energy

    3.  Entropy

    4.  Free energy







  8. Net productivity of closed ecosystem is __________.


    1.  +1/–1

    2.  <0

    3.  0

    4.  >0







  9. Among the following which is not an characteristic of r-Selected species______________.


    1.  short life span

    2.  Increased population rate

    3.  Short maturation time

    4.  Both a & b







  10. In an pond ecosystem, net productivity by zooplankton is ‘p’ and biomass consumed by small fishes is 'c', then the ratio of c/p is termed as _____________.


    1.  Net secondary productivity

    2.  Consumption efficiency

    3.  Conversion efficiency

    4.  Assimilation efficiency 















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