Tag: dbt jrf pyq

197. Commercial production of citric acid is done by fermentation using: A. Aspergillus niger B. Clostridium butyricum C. Saccharomyces cerevisiae D. Lactobacillus acidophilus Explanation: Citric acid is an important organic […]

196. Latency is a characteristic of which one of the following viruses? A. Herpes virus B. Polio virus C. Rhino virus D. Influenza virus Explanation: Latency refers to a phase […]

195. Which regions of the genome are best suited for generating DNA Barcodes for species identification? A. Organellar genes B. Ribosomal genes C. Histone genes D. Non coding regions of […]

194. Amide bonds between two amino acids (as shown below) are generally in trans-conformation. The atoms are labeled as A1 through A6. The angle measured for defining the trans-conformation of […]

193. Which one of these is a metal containing Vitamin? A. Vitamin C B. Vitamin B1 C. Vitamin B12 D. Vitamin A Explanation: Vitamin B12 (Cobalamin): Contains the metal cobalt […]

192. Given below are two statements one is labelled as Assertion A and the other is labelled as Reason R: Assertion A: Phosphomannose isomerase (PMI) from E. coli was used […]

191. Given below are two statements: Statement I: Polycistronic mRNAs are found in archaea and bacteria. Statement II: Plastid genes in eukaryotes have only mono-cistronic mRNA. In the light of […]

190. Which command is suitable to list out all the directories in the working directory, in linux/unix environment? A. 𝐼𝑠 − 1|𝑔𝑟𝑒𝑝 𝑑 ⋀ B. 𝑔𝑟𝑒𝑝 𝑑 ⋀ |𝐼𝑠 − […]

189. VirA and Virg form a two component signaling system during Agrobacterium infection in plants. In an experiment, VirG was mutated resulting in non-functional VirG protein. Which one of the […]

188. If in a bioreactor, the gas hold up (𝜀) is 0.1 and the average diameter of the air bubbles is 1 mm; then the interfacial area (of the air […]