#1
28th October 2014, 08:18 AM
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CSIR NET Question Papers Life Sciences
Will you please provide me the Model Question Papers for CSIR NET Exam for Life Sciences?
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#2
28th October 2014, 09:08 AM
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Re: CSIR NET Question Papers Life Sciences
As you are looking for the Model Question Papers for CSIR NET Exam for Life Sciences so here it is given below: LIFE SCIENCES PAPER II 1. a) Draw a graph that will represent the following equation: dA = kA dt (5) b) Describe a method to determine surface area of a leaf without using any instrument. (5) c) Water is often contaminated by a variety of ionic impurities. What is the best method to determine purity of a sample of water? (5) d) You have to test if ponds A, B and C differ significantly in their primary productivity. What statistical test should be applied to your data? Justify your choice of the test. (5) 2. The extensive sequences (Gly-X-Pro)n or (Gly-X-Hpro)n stabilize the collagen triple-helix, in which X is any amino acid. (i) Why must Gly be present in every third residue? (5) (ii) What are the principal bonds, which are responsible for holding three helical strands together in the superhelix? (4) (iii) How does each strand of the collagen helix differ from an α-helix in terms of structural characteristics? (3) 3. (a) An experiment was done to determine the effect of compound Y on the biochemical reaction A + B → C. It was found that in the presence of Y, very little, if any, product C was formed. However, on increasing the concentration of A, C could be detected. Explain the effect of Y on the reaction. (2) (b) Describe an approach by which secondary structure of RNA molecules can be verified. (5) (c) How would you determine the aggregation state and shape of a biomacro- molecule in solution? For whole paper here is the attachment you can download it free |
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