(1). A flow cytometer is used to measure the number of a. Cells b. DNA c. RNA d. Proteins (2). How many H atoms would be replaced CCl4 in presence of ethanol during NMR spectrum? a. 1 b. 2 c. 3 d. 4 (3). During the regulation of trp operon […]
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JRF NET Life Sciences June 2017 Free Model Question Papers (13)
(1). Most of the DNA binding protein binds to DNA by particular motif to modulate gene expression. Genes which are under the regulation of gibberllic acid have GRE where, GREB binds. The motif in GREB is ______ a. Leucine Zipper b. bZIP c. Zinc finger d. Homoedomain (2). Which of […]
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CSIR JRF NET Life Sciences December 2017 Model Question (12)
(1). The characteristics of organisms the reaches first to barren Island during the ecological succession: a. Slow growth and small generation time b. Slow growth and large generation time c. Fast growth and small generation time d. Fast growth and large generation time Learn more: Process of Ecological Succession (2). […]
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CSRI JRF NET Life Sciences June Model Question (11)
1. Penicillin-resistant bacteria produce β-lactamase which inactivates penicillin by: a. Esterifying the carboxyl group b. Oxidizing S atom c. Hydrolyzing the side chain d. Hydrolyzing the C-N bond Ans. (d) β-lactamases or penicillinase are a class of enzymes produced by some bacteria which degrade penicillin antibiotic and thereby impart resistance […]
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Life Sciences JRF NET Model Question Paper for June (10)
(1). During glycogen metabolism, the glycogen in the cell is first breakdown to glucose-1-phosphate by the enzyme glycogen phosphorylase. This reaction is a______ a. Glycolysis reaction b. Hydrolysis reaction c. Phosphorolysis reaction d. Glucolysis reaction Learn more: MCQ on Carbohydrates (3 sets) (2). Which of the following genes is activated […]
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