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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?

#Unit 5. Developmental Biology
  1. A and C
  2.  B and D
  3. A and D
  4. B and C
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TLS Online TPP Program

#Question id: 2281

#Unit 2. Cellular Organization

Enzymes embedded in the membrane of the smooth ER
TLS Online TPP Program

#Question id: 5209

#Unit 11. Evolution and Behavior

If humans have 2,900 Mb, a specific member of the lily family has 120,000 Mb, and a yeast has ~13 Mb, why canʹt this data allow us to order their evolutionary significance
TLS Online TPP Program

#Question id: 10256

#Unit 6. System Physiology – Plant

Both sucrose synthase and invertases can degrade sucrose for glycolysis, what will happen if one of the enzymes is absent or mutant?
TLS Online TPP Program

#Question id: 1023

#Unit 4. Cell Communication and Cell Signaling

Which amino acid(s) is/are found only in the cell walls of bacteria?
TLS Online TPP Program

#Question id: 12571

#Unit 10. Ecological Principles

Although extinction is a natural process, current extinctions are of concern to environmentalists because