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TLS Online TPP Program

#Question id: 1099

How does the toxin of Vibrio cholerae cause profuse diarrhea?

#Unit 4. Cell Communication and Cell Signaling

  1. It modifies a G protein involved in regulating salt and water secretion.

  2. It modifies adenylyl cyclase and triggers excess formation of cAMP.

  3. It signals IP3 to act as a second messenger for the release of calcium.

  4. It modifies a ligand-gated ion channel.

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TLS Online TPP Program

#Question id: 15262

#Unit 2. Cellular Organization

A media which makes easier to distinguish colonies of the desired organism from other colonies growing on the same plate.
TLS Online TPP Program

#Question id: 15263

#Unit 2. Cellular Organization

Pure colonies also can be obtained from
TLS Online TPP Program

#Question id: 15264

#Unit 2. Cellular Organization

What chemical can be used to deplete the oxygen present in the culture medium
TLS Online TPP Program

#Question id: 15265

#Unit 2. Cellular Organization

The growth of microorganisms in a food product is influenced by the availability of
TLS Online TPP Program

#Question id: 15266

#Unit 13. Methods in Biology

In DNA isolation, which of the following enzyme remove/digest proteins in presence of SDS or chelating agent
TLS Online TPP Program

#Question id: 15267

#Unit 13. Methods in Biology

Which of the following is relatively more stable to heat