Identify the enzyme that catalyzes the following reaction:
α-Ketoglutarate + NADH + NH4+ + H+ → Glutamate + NAD+ + H2O
(A) Glutamate synthetase
(B) Glutamate oxoglutarate aminotransferase
(C) Glutamate dehydrogenase
(D) α-ketoglutarate deaminase

During lactic acid fermentation, net yield of ATP and NADH per mole of glucose is
(A) 2 ATP and 2 NADH
(B) 2 ATP and 0 NADH
(C) 4 ATP and 2 NADH
(D) 4 ATP and 0 NADH

In a chemostat operating under steady state, a bacterial culture can be grown at a dilution rate higher than maximum growth rate by
(A) partial cell recycling
(B) using sub-optimal temperature
(C) pH cycling
(D) substrate feed rate cycling

Expressed Sequence Tag is defined as
(A) a partial sequence of a codon randomly selected from cDNA library
(B) the characteristic gene expressed in the cell
(C) the protein coding DNA sequence of a gene
(D) uncharacterized fragment of DNA present in the cell

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

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

Lymphocytes interact with foreign antigens in
(A) Bone marrow
(B) Peripheral blood
(C) Thymus
(D) Lymph nodes

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

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

Interferon-β is produced by
(A) bacteria infected cells
(B) virus infected cells
(C) both virus and bacteria infected cells
(D) fungi infected cells