Tag: dbt jrf pyq

106. A bacterial signaling system that regulates population density-dependent gene expression using secreted chemical signals is known as: A. G protein-coupled receptor signalling B. Quorum sensing C. Receptor-mediated signalling D. […]

105. A continuous reactor has a productivity of 0.5 𝑔/𝐼/ℎ. The volume of reactor required to produce 1.2 ton/day of the product is: A. 100 𝐿 B. 1 𝑚3 C. […]

104. A haploid sperm from one species and a haploid egg from another species may form a diploid interspecies hybrid. Meiosis in these plants generally fails but can also lead […]

103. Which family of proteins has the greatest likelihood of containing a Leucine-zipper motif? A. Serine proteases B. Map kinases C. Transcription factors D. Sugar binding proteins Detailed Explanation: The […]

102. Short Chain variable fragments (ScFv) of antibody are composed of : A. 𝑉𝐻 and 𝑉𝐿 domains with 𝐶𝐻 domain B. 𝑉𝐻 and 𝑉𝐿 domains along with Fc region C. […]

101. A protein sample isolated from natural source was electrophoresed on a non-reducing SDSPAGE. It migrated as a band corresponding to 60 kDa. When the same protein was electrophoresed on […]

100. Which one of the following organisms is NOT an obligate intracellular parasite and, therefore, can grow on bacteriological media? A. Mycoplasma B. Chlamydia C. Rickettsia D. Adenovirus Detailed Explanation: […]

99. Which one of the immunodeficiency is caused by a mutation in BTK gene: A. X-linked SCID B. X-linked agammaglobulinemia C. DiGeorge syndrome D. Chronic granulomatous disease Detailed Explanation: Immunodeficiencies […]

98. The CO-NH moiety between two C-alpha atoms constitutes the Peptide bond. The measured bond lengths (Angstroms) are: C(alpha)-CO (1.51); C=O (1.24); C-N(1.33); N-C(alpha)1.46. In which of these, there is […]

97. Which of the following statements are correct? A. Lipid bilayer lacking proteins is highly impermeable to all the charged molecules. B. Channels have specific binding pockets for the solute […]