Re: CSIR JRF model question papers
Here am providing you model test paper of CSIR-NET/JRF :
21. Which of the following bonds will be most difficult to break?
22. A solution of 1% (w/v) starch at pH 6.7 is digested by 15 µg of -amylase (mol wt 152,000). The rate of maltose (mol wt = 342) had a maximal initial velocity of 8.5 mg formed per min. The turnover number is
1. 0.25 105 min–1.
2. 25 105 min–1.
3. 2.5 105 min–1.
4. 2.5 104 min–1.
23. The conformation of a nucleotide in DNA is affected by rotation about how many bonds?
24. Which of the following proteins acts as an energy transducer?
4. Heat shock protein.
25. Which of the following predicted property of lipid bilayers would result if the
phospholipids had only one hydrocarbon chain instead of two?
1. The bilayers formed would be much less fluid.
2. The diameter of the head group would be much larger than the acyl chain and would tend to form micelles rather than bilayers.
3. the bilayers formed would be much more fluid.
4. the bilayers would be more permeable to small water-soluble molecules.
26. Which pump is responsible for initiating muscle contraction through depolarization of muscle cell membrane?
1. Na+ pump.
2. K+ pump.
3. Ca2+ pump.
4. Mg2+ pump.
27. Which of the following statements is not true for transposable element system?
1. It consists of both autonomous and non-autonomous elements.
2. Dissociation elements are autonomous in nature.
3. Transposase is transcribed by the central region of autonomous elements.
4. Certain repeats in the genome remain fixed even after the element transposes out.
28. A set of virulence genes (vir genes), located in the Agrobacterium Ti-plasmid, is activated by
29. When two mutants having the same phenotype were crossed, the progeny obtained showed
a wild-type phenotype. Thus the mutations are
3. segregating from each other.
4. independently assorting.
To see complete Model test paper download the PDF file attached below:
Answered By StudyChaCha
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