Tag: dbt jrf 2019

179. A pilot plant treating organic waste in aerobic and continuous mode was running with a constant organic load. It was observed that after three days, the Dissolved Oxygen level […]

177. A wastewater has BOD of 1500 mg/L and COD of 2400 mg/L. Assuming 80% treatment efficiency in an activated sludge bioreactor, the BOD/COD ratio of treated effluent will be: […]

176. A starch containing wastewater sample with high BOD, CaCl2 and NH4NO3 was subjected to aerobic oxidation using a designed bacterial consortium. The oxidised product(s) will have: (1) Cl2, N2, […]

175. Remote sensing of ocean-atmospheric parameters carried out in the microwave channels is based on the phenomenon of: (1) emission. (2) reflection. (3) scattering. (4) diffraction Remote Sensing in Microwave […]

174. Ballast water may be carried onboard by ships to maintain stability and improve maneuverability during transit. Introduction of which one of the following is regarded as the major threat […]

173. Which one of the following transgenes expressed in transgenic fish by an appropriate inducible promoter, may be used for detecting environmental toxicants? (1) Super oxide dismutase (2) Green Fluorescent […]

172. The antifreeze molecules that prevent intracellular ice formation in marine organisms are generally: (1) calcium salts. (2) glycoproteins. (3) membrane phospholipids. (4) long chain alcohols. Antifreeze Glycoproteins in Marine […]

171. Paralytic shellfish poisoning is a foodborne illness that typically develops after consumption of shellfish contaminated chiefly with the heat stable and acid stable toxin: (1) Okadaic acid. (2) Mitotoxin. […]

169. Viral vector that is ideal for expressing therapeutic gene in non-dividing cells is: (1) Lentiviral vector (2) Retroviral vector (3) Adeno-associated viral vector (4) Adenoviral vector Title: The Ideal […]

Neurotransmitter at the neuromuscular junction is: (1) Epinephrine (2) Serotonin (2) Acetylcholine (4) Dopamine The Role of Acetylcholine as a Neurotransmitter at the Neuromuscular Junction Introduction The nervous system is […]