Tag: DBT JRF PYQ-2022

129. Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Histones bind to DNA with high affinity. Reason […]

128. A laboratory is trying to purify a Histone-binding protein from its native source. Which one of the following purification techniques should be used for one-step purification of the protein? […]

127. A diafiltration process is used to remove salts from a protein solution of 1L. After 1L of makeup buffer (without salts) has been added to this system, the residual […]

126. Which one of the following is the most accurate statement regarding giardiasis? A. The drug of choice for giardiasis is chloroquine. B. Giardia lamblia produces an enterotoxin that increases […]

125. Given below are two statements: Statement I: MacConkey agar is a media used for recovery of Gram positive bacteria from mixed bacterial culture. Statement II: The bile salts and […]

124. The red color of beetroot is due to the presence of: A. Betalains B. Anthocyanins C. Flavonoids D. Carotenoids Detailed Explanation: The red color of beetroot comes from a […]

123. Which one of the following will NOT change upon adding an enzyme to a chemical reaction or changing the concentration of reactants or products? A. ∆𝐺° B. 𝐾𝑒𝑞 C. […]

122. Which one of the following cell separation techniques allows cells from different stages of the cell cycle to be separated simultaneously with minimal perturbation to their physiology? A. counterflow […]

121. Which one of the molecular processes utilize 2′, 3′ Dideoxy-ribonucleoside triphosphates? A. DNA synthesis for primers. B. Okazaki fragment formation during lagging strand synthesis. C. DNA sequencing by synthesis. […]

120. Proteins are glycosylated in the endoplasmic reticulum. In the final structures, the glycan moieties are typically present: A. on the surface of these proteins. B. in the core of […]