Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 270
TLS Online TPP Program

#Question id: 288

Which does not occur during the hydrolysis of RNA by RNase A?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. Covalent catalysis involving a bond between a pyrimidine and a lysine of RNase A.

  2. Acid-base catalysis to cleave the phosphodiester bond.

  3. Abstraction of a proton from the 2ʹ-hydroxyl group by histidine.

  4. Transition-state stabilization of a pentavalent phosphorous atom.

More Questions
TLS Online TPP Program

#Question id: 5163

#General Aptitude

Find 1/(√9 - √8) + 1/(√8 - √7) +--------------------- + 1/(√5 - √4) = ?
TLS Online TPP Program

#Question id: 24231

#Unit 4. Cell Communication and Cell Signaling

Match the following classes of classical cadherins with their functions.
 
a. E-cadherin      1.present on many types of epithelial cells
b. N-cadherin      2.present on nerve, muscle and lens cells
c. P-cadherin       3.present on cells in the placenta & epidermis
TLS Online TPP Program

#Question id: 32353

#Unit 1. Molecules and their Interaction Relevant to Biology

The principal form in the brain of Hexokinase is 
TLS Online TPP Program

#Question id: 26413

#Unit 3. Fundamental Processes

Which of the following positions is more prone to tautomerism
TLS Online TPP Program

#Question id: 28630

#Unit 2. Cellular Organization

Which of the following transcription factor induce transcription of the G1/S phase cyclin genes CLN1 and CLN2?