CSIR Paper 2 Life Science Questions (Part 2 of 10)

  1. Sendai Virus enters host cell by

    1. Endocytosis

    2. Phagocytosis

    3. Cell fusion

    4. Receptor mediated endocytosis

  2. Red wine and Red grpaes are important source of which anti-tumour agent

    1. Taxol

    2. Cincristine

    3. Resveratol

    4. Bardystanin

  3. Maximum possible siomers for glucose are

    1. 4

    2. 8

    3. 16

    4. 32

  4. Which of the following is NOT a property of a enzyme

    1. from complex with subtrate

    2. decrease activation energy

    3. decrease Gibb's free energy

    4. Increass rate of reaction

  5. Which era is characterized by dramatic diversification among eukaryotes?

    1. Cambrian

    2. Devonian

    3. Carboniferous

    4. Triassic

  6. An organism influence the evolutionary pace of the other organism in

    1. Coevolution

    2. Parallel evolution

    3. Convergent evolution

    4. Divergent evolution

  7. A population of 200 is in Hardy-Weinberg equilibrium with allele frequency of ‘A’ = 0.7 and ‘a’ = 0.3. The number of carriers in popularion will be

    1. 18

    2. 42

    3. 84

    4. 98

  8. Air inhaled during breathing contains principle gases in order N2>O2>CO2>H2. The gases in exhaled air would be in order.

    1. N2>CO2>O2>H2

    2. N2>O2>CO2>H2

    3. N2>CO2>H2>O2

    4. N2>H2>CO2>CO2

  9. Distance betwene the two linked genes A and B is 20 Cm. On test cross of with recessive parent how many offspring will have genotype

    1. 10

    2. 20

    3. 40

    4. 80

  10. In Neurospora crossa tetrad analysis showed following resut +: m: 6: 2. The phenomenon involved for above result would be

    1. Branch migration

    2. Strand exchange

    3. Holiday junction

    4. DNA replication