Practice Questions

TLS Online TPP Program

#Question id: 4476

Regulatory elements include promoter proximal elements, upstream activator sequences (UASs), enhancers, and a series of other element

#Unit 3. Fundamental Processes

Can be located many tens or even hundreds of kilobases from the core promoters on which they act
Which help transcription from the core promoter
Which hinders transcription from the core promoter
A, B and C

More Questions

#Question id: 1121

#Unit 4. Cell Communication and Cell Signaling

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

#Question id: 1122

#Unit 4. Cell Communication and Cell Signaling

In endocrine signaling, the signaling molecule.

#Question id: 1123

#Unit 4. Cell Communication and Cell Signaling

Epinephrine can be what kind of signaling molecule?

a. autocrine b. direct contact c. endocrine d. paracrine

#Question id: 1124

#Unit 4. Cell Communication and Cell Signaling

Which of the following is (are) intracellular second messengers?

a. Ca2+ b. cAMP c. epinephrine

d. protein kinase A e. protein kinase C

#Question id: 1125

#Unit 4. Cell Communication and Cell Signaling

Examples of G protein–coupled receptors include

a. rhodopsin receptor. b. β-adrenergic receptor.

c. insulin receptor. d. acetylcholine receptor.

#Question id: 1126

#Unit 4. Cell Communication and Cell Signaling

Which of the following statement(s) is (are) true of the α subunit of a G protein?

a. It physically associates with the receptor.

b. It binds GDP.

c. It binds GTP.

d. It is a transmembrane protein.