Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 26922
TLS Online TPP Program

#Question id: 815

The cis conformation shows Cα atoms are on the same side of the peptide bond, is ∼8 kJ mol−1 less stable than the trans conformation. Why?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. steric interference between ketone and amide group

  2. because of steric interference between neighboring side chains

  3. conformational entropy will be high in cis conformation

  4. because the peptide bond is less stable

More Questions
TLS Online TPP Program

#Question id: 1376

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements is NOT TRUE about gap junctions?
TLS Online TPP Program

#Question id: 3879

#Unit 3. Fundamental Processes

Which of the following is not usually essential for the catalytic activity of ribozymes?
TLS Online TPP Program

#Question id: 5820

#Unit 8. Inheritance Biology

A new chemical pesticide developed for agricultural use was subjected to the Ames test. The rate of mutation seen in samples treated with the pesticide and liver extract was approximately half that of the samples treated with the liver extract alone; in samples treated with only pesticide, the mutation rate was about the same as that of untreated samples. Which of the following statements could you make about this pesticide?
TLS Online TPP Program

#Question id: 23359

#General Aptitude

When a teacher is being treated as an effective communicator, the teacher's duty should be
TLS Online TPP Program

#Question id: 19832

#Unit 12. Applied Biology

The single component system is based on the expression of a toxic polypeptide in response to