CSIR NET Life Sciences December 2008 Paper (Part 14 of 14)

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  1. Which is true for beta-oxidation of fatty acids

    1. Formation of malonyl CoA

    2. Formation of acetoacetyl ACP

    3. Transport of acyl CoA into mitochondria

    4. Use of NADPH2

  2. Which radioisotope is generally incorporated in thymine to study DNA replication process

    1. 32P

    2. 35S

    3. 3H

    4. 14C

  3. Which technique is used to study de novo RNA SYNTHESIS?

    1. Southern blotiing

    2. Northern blotting

    3. Micorarray

    4. RTPCR

  4. Enzymes accelerates rate of reaction by

    1. Lowering number of transition states

    2. Lowering the activation energy of highest transition state

    3. Providing energy to substrate

    4. Providing more chance to substrates to react together

  5. Enzymes donot interfere with

    1. Free energy of reaction

    2. Rate of reaction

    3. Activation energy of transition state

    4. Reaction equilibrium

  6. When oxygen-haemoglobin curve shift to left it represents

    1. Decrease in pH

    2. Decrease in CO2 level

    3. Rise in concentration of 2, 3 BPG

    4. more affinity for oxygen

  7. The major role of 2, 3 BPG formed during glycolysis in RBC is for hemoglobin is

    1. Increasing affinity for oxygen

    2. Decreasing affinity for oxygen

    3. Increasing affinity for CO2

    4. Decreasing affinity for CO2

  8. As we move from one geographical region to next neighbouring region, species diversity tends to change. It is termed as

    1. Alpha-Diversity

    2. Beta Diversity

    3. Gamma-Diversity

    4. Thetha-Diversity

  9. Covalent bond formation between two atoms takes place by

    1. Transfer of electron from one atom to other

    2. One side sharing of electrons

    3. Electon sharing by both interacting atoms

    4. Affinity between two atoms

  10. Globular protein when treated with organic solvent get denatured. The main interaction which is affected on treatment with organic solvent is

    1. Hydrogen bonds

    2. Covalent bonds

    3. Ionic interactions

    4. Hydrophobic interactions

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