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TLS Online TPP Program

#Question id: 1506

An oncogene codes for a growth factor receptor that is constitutively active. Of the following statements about a culture of cells expressing this gene, which would you expect to be true?

#Unit 4. Cell Communication and Cell Signaling

  1. The cells would be stimulated to divide by addition of growth factors to the medium.

  2. Cells in the culture would have no response to the addition of growth factors.

  3. Cells in the culture would be arrested in the Go phase of the cell cycle.

  4. None of the above.

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TLS Online TPP Program

#Question id: 14832

#Unit 2. Cellular Organization

The characteristic virulence factor of S. pneumoniae is
TLS Online TPP Program

#Question id: 14833

#Unit 2. Cellular Organization

The pneumococcal vaccine is directed against the
TLS Online TPP Program

#Question id: 14963

#Unit 2. Cellular Organization

Which antibiotics may be completely ineffective in treating a mycoplasmal infection?
TLS Online TPP Program

#Question id: 14964

#Unit 2. Cellular Organization

The resistance of the tubercle bacillus to various factors is probably due to its
TLS Online TPP Program

#Question id: 14965

#Unit 2. Cellular Organization

An exotoxin is a toxin secreted by bacteria. It can cause damage to the host by destroying cells or disrupting normal cellular metabolism. They are highly potent and can cause major damage to the host. Exotoxins may be secreted by bacteria which
TLS Online TPP Program

#Question id: 14966

#Unit 2. Cellular Organization

The bacterial cell wall is composed of a macromolecular network called peplidoglycan (also known as murein) which is present either alone or in combination with other substances