TLS Online TPP Program

#Question id: 8921


Evidence of which structure or characteristic would be most surprising to find among fossils of the Ediacaran fauna?

#XL - S Microbiology
  1. true tissues
  2. hard parts
  3. bilateral symmetry
  4. cephalization
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TLS Online TPP Program

#Question id: 2114

#XL - S Microbiology

A research team is working on the design of a new drug for the treatment of lung cancer. To be most effective, this drug must specifically enter the cytoplasm of lung cells while not entering the cells of other tissues. Which of the following characteristics would likely enhance the specificity of this drug?

TLS Online TPP Program

#Question id: 19864

#XL - P Chemistry

If the energy of electron in H atom is given by expression, − 1312/n2 kJ mol-1, then the energy required to excite the electron from ground state to second orbit is

TLS Online TPP Program

#Question id: 17216

#XL - T Zoology

What do you mean by negative feedback system?

TLS Online TPP Program

#Question id: 2166

#XL - S Microbiology

Typical ion/ligand concentrations are

TLS Online TPP Program

#Question id: 7290

#XL - R Botany

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?