(1). The quaternary structure of human hemoglobin is best described as: a. Dimer of two myoglobin dimers b. Tetramer of identical subunits c. Tetramer of four different subunits d. Tetramer of two different subunits (2). Which of the following statements is NOT true for Fluorescence Resonance Energy Transfer (FRET)? a. […]
(1). Action of topoisomerase leads to changes in a. Linking number of single-stranded linear DNA b. Lining number of double stranded linear DNA c. Linking number of closed circular single stranded DNA d. Linking number of closed circular double stranded DNA (2). Sarcomas are cancers originating from: a. Spleen b. […]
CSIR JRF NET Life Sciences Examination: December 2016 Model Question Paper with Answer Key and Explanations – Set 1/5 1. The metal component of Nitrogenase enzyme is: a. Mananese b. Molybdenum c. Copper d. Zinc 2. The only plant hormone which is NOT translocated from the cells producing it: a. […]
(1). Active site of all serine proteases consists of a. Ser-Glu-Asp b. Ser-Glu-Met c. Ser-His-Asp d. Ala-Glu-Met (2). Which of the following properties is common to all cytoskeletal motor proteins like kinesisn, dyneins and myosins? a. GTPase activity b. ATPase activity c. Actin binding domain d. DNA binding domain (3). […]
(1). In pET expression vectors, high level of expression of cloned gene is achieved using a. T7 promoter b. SP6 promoter c. Λ-PL promoter d. Trp promoter (2). Archaea is considered as a separate group from bacteria and eukaryotes, based on a. Genome sequence b. 16S rRNA gene sequence c. […]