Which one of the following DOES NOT belong to the domain of Bacteria? (A) Cyanobacteria (B) Proteobacteria (C) Bacteroids (D) Methanobacterium
1 Answer An immobilized enzyme being used in a continuous plug flow reactor exhibits an effectiveness factor (η) of 1.2. The value of η being greater than 1 could be apparently due to (A) substrate inhibited kinetics with external pore diffusion limitation (B) internal pore diffusion limitation (C) sigmoidal kinetics (D) unstability of the enzyme
1 Answer Interferon-β is produced by (A) bacteria infected cells (B) virus infected cells (C) both virus and bacteria infected cells (D) fungi infected cells
1 Answer A roller bottle culture vessel perfectly cylindrical in shape having inner radius (r) = 10 cm and length (l) = 20 cm was fitted with a spiral film of length (L) = 30 cm and width (W) = 20 cm. If the film can support 10^5 anchorage dependent cells per cm^2, the increase in the … Read more
1 Answer A culture of bacteria is infected with bacteriophage at a multiplicity of 0.3. The probability of a single cell infected with 3 phages is (A) 0.009 (B) 0.027 (C) 0.9 (D) 0.27
1 Answer A neonatally thymectomized mouse, immunized with protein antigen shows (A) both primary and secondary responses to the antigen (B) only primary response to the antigen (C) delayed type hypersensitive reactions (D) no response to the antigen
1 Answer Lymphocytes interact with foreign antigens in (A) Bone marrow (B) Peripheral blood (C) Thymus (D) Lymph nodes
1 Answer Somatic cell gene transfer is used for P. transgenic animal production Q. transgenic diploid cell production R. classical breeding of farm animals S. in-vitro fertilization (A) P, R and S (B) P, Q and R (C) P and R (D) P only
1 Answer Q.1 Hybridoma technology is used to produce (A) monoclonal antibodies (B) polyclonal antibodies (C) both monoclonal and polyclonal antibodies (D) B cells
1 Answer Accession number is a unique identification assigned to a (A) single database entry for DNA/Protein (B) single database entry for DNA only (C) single database entry for Protein only (D) multiple database entry for DNA/Protein
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