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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: 14839

#Unit 5. Developmental Biology

Given are certain facts which define ‘specification’ of a developing embryo.
 A. At the specification stage, commitment to cell identity is labile.
 B. At the specification stage, cell is capable of differentiating autonomously.
 C. The cell “knows” very early what it is to become without interacting with other cells.
 D. A phase where inductive signals trigger cell to determines their fate.
 Which of the above statements best define specification?
TLS Online TPP Program

#Question id: 26437

#Unit 3. Fundamental Processes

GC – TA transversion caused by the insertion of
TLS Online TPP Program

#Question id: 7103

#Unit 5. Developmental Biology

Patterning of the Xenopus mesoderm along the dorso-ventral axis involves an antagonistic relationship between chordin and BMP-4. Is there an analogy here to dorso-ventral patterning in the Drosophila embryo?
TLS Online TPP Program

#Question id: 24499

#Unit 3. Fundamental Processes

Which of the following Component  is common among the U2/U12  complex of splicing 
TLS Online TPP Program

#Question id: 4411

#Unit 3. Fundamental Processes

All of the following are associated with vertebrate promoters located in active chromatin EXCEPT