Tag: dbt jrf 2018

83. A scientist aims to identify a binding site for a new transcriptional anti-terminator protein. Which one of the following techniques will be most appropriate for this experiment 1. Microarray […]

82. A mammalian cell culture is treated with cycloheximide. Protein synthesis of cells after treatment was recorded through incorporation of labeled amino acids. In which of the following organelles will […]

80. Phosphorylation of proteins is a typical post-translational modification which modulates their activities. Which one of the following amino acid residues can be phosphorylated? 1. Glutamic acid 2. Lysine 3. […]

79. The restriction site for Van91I is 5′ CCANNNN↓NTGG 3′. How many times can Van91I cut a 4 Mb bacterial genome with 50% GC content? 1. 1000 times 2. 10 […]

78. Rag1 null mice are susceptible to infection because: 1. RAG1 is a protein involved in innate immune response 2. RAG1 is involved in gene rearrangement in all somatic cells […]

77. During DNA replication the newly generated strand remains attached to the template. However, during transcription newly synthesized RNA dissociates from the template. This is achieved by: 1. RNase H […]

76. Helicobacter pylori survives in the acidic environment of the stomach because it: 1. has acid resistant cell wall 2. releases alkaline compounds 3. produces urease enzyme 4. uses acid […]

75. The Carbon (C1) of glucose is labelled with 14C (specific activity of 10 mCi/mmole). After one round of glycolysis, the specific activity of radiolabelled pyruvate is: 1. 0 2. […]

72. The common feature of Rho-independent and Rho-dependent termination of transcription is: 1. the active signal lies in the direct repeats in nascent RNA 2. the active signal lies in […]

70. Which of the following statements is NOT correct about enhancers? 1. They can function in either orientation 2. They decrease the binding of activators near the promoter 3. They […]