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TLS Online TPP Program

#Question id: 1121

Which of the following provides the best evidence that cell-signaling pathways evolved early in the history of life?

#Section 3: Genetics, Cellular and Molecular Biology

  1. Cell-signaling pathways are seen in "primitive" cells such as bacteria and yeast.

  2. Bacteria and yeast cells signal each other in a process called quorum sensing.

  3. Signal transduction molecules identified in distantly related organisms are similar.

  4. Most signals in all types of cells are received by cell surface receptors.

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TLS Online TPP Program

#Question id: 17660

#Section 4: Fundamentals of Biological Engineering

A pseudoplastic fluid is one in which the viscosity
TLS Online TPP Program

#Question id: 27429

#Section 5: Bioprocess Engineering and Process Biotechnology

The desirable characteristics of the support matrix for enzyme immobilization should be
TLS Online TPP Program

#Question id: 3023

#Section 2: General Biology

During which phase of the bacterial growth curve does a bacterial population become much more resistant to harmful conditions?
TLS Online TPP Program

#Question id: 1634

#Section 2: General Biology

What is the main reason an experimental animal treated with X-rays can act as a living test tube for lymphocyte transfer experiments?
TLS Online TPP Program

#Question id: 1897

#Section 2: General Biology

The single best description of type III hypersensitivity is that it involves: