Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 48373
TLS Online TPP Program

#Question id: 7290

Following figure regarding to regulatory network in the Arabidopsis shoot meristem stem-cell niche.

A. The transcription factor WUS is synthesized in the cell A and moves via plasmodesmata into cell B, where one of its functions is to induce expression of the CLV3.

B. The transcription factor CLV3 is synthesized in the cell A and moves via plasmodesmata into cell B, where one of its functions is to induce expression of the WUS.

C. Secreted CLV3 protein from cell B binds to the receptor protein kinase on the surface of cell A; there, it activates a signal that represses WUS transcription.

D. Secreted WUS protein from cell B binds to the receptor protein kinase on the surface of cell A; there, it activates a signal that represses CLV3 transcription.

Which of the following combination is correct?

#SCPH28 | Zoology
  1. A and C
  2.  B and D
  3. A and D
  4. B and C
More Questions
TLS Online TPP Program

#Question id: 792

#SCPH05 I Biotechnology

Which arm of the tRNA can act as a structural recognition feature?
TLS Online TPP Program

#Question id: 2067

#SCPH05 I Biotechnology

Which of the following would likely diffuse through the lipid bilayer of a plasma membrane most rapidly?
TLS Online TPP Program

#Question id: 15580

#SCPH05 I Biotechnology

The unit of volumetric oxygen transfer coefficient (KLa) is
TLS Online TPP Program

#Question id: 972

#SCPH28 | Zoology

What is the source of the carbon atoms 2 and 8 during de novo biosynthesis of purines?
TLS Online TPP Program

#Question id: 414

#I Life Science/ Life Sciences Group – I-V

The hydrolysis of phosphoenolpyruvate proceeds with a DG'° of about –62 kJ/mol. The greatest contributing factors to this reaction are the destabilization of the reactants by electostatic repulsion and stabilization of the product pyruvate by: