TLS Online TPP Program

#Question id: 18854


What properties of a protein does hydrophobic interaction chromatography exploit for purification?

#Unit 13. Methods in Biology
  1. Charged amino acids
  2. Hydrophobic amino acids on the protein surface
  3. Molecular weight
  4. Enzyme activity
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TLS Online TPP Program

#Question id: 4023

#Unit 3. Fundamental Processes

Which of the following is a fundamental difference between gene regulation in bacteria compared with eukaryotes?

TLS Online TPP Program

#Question id: 4024

#Unit 3. Fundamental Processes

All of the following statements about the essential carboxy terminal domain (CTD) of RNA polymerase are true except:

TLS Online TPP Program

#Question id: 4025

#Unit 3. Fundamental Processes

You have identified a transcription factor and hypothesize that it binds to the promoter region of a gene that encodes a protein that causes cells to stop dividing. In order to test the interaction between the transcription factor and the DNA you will need to do a specific assay. Which one of the following would you use to test your hypothesis?

TLS Online TPP Program

#Question id: 4026

#Unit 3. Fundamental Processes

The human genome encodes transcription factors that contain an acidic activation domain that is phosphorylated in response to increased levels of the second messenger cAMP. Which one of the following contains one of these activation domains?

TLS Online TPP Program

#Question id: 4027

#Unit 3. Fundamental Processes

Enhancers are considered transcription-control elements that regulate the expression of eukaryotic genes. Which one of the following is true regarding these elements?

TLS Online TPP Program

#Question id: 4028

#Unit 3. Fundamental Processes

Which one of the following terms is used to describe the protein:DNA complex containing several transcription factors bound to a single enhancer?