Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 3778
TLS Online TPP Program

#Question id: 3991

Attenuation in the trp operon of E. coli:

#Unit 3. Fundamental Processes

  1. can adjust transcription of the structural genes upwards when tryptophan is present.

  2. can fine-tune the transcription of the operon in response to small changes in Trp availability.

  3. is a mechanism for inhibiting translation of existing (complete) trp mRNAs.

  4. results from the binding of the Trp repressor to the operator.

More Questions
TLS Online TPP Program

#Question id: 3863

#Unit 3. Fundamental Processes

Introns in nuclear pre-mRNAs are excised by:
TLS Online TPP Program

#Question id: 26909

#Unit 10. Ecological Principles

Organic matter is limited at one particular horizon layer and not found in other layer at which horizon layer has organic matter is limited?
TLS Online TPP Program

#Question id: 29522

#Unit 6. System Physiology – Plant

Elicitors found in insect saliva are normally
TLS Online TPP Program

#Question id: 27117

#Unit 4. Cell Communication and Cell Signaling

Most tumors have an unique property to induce the formation of new blood vessels that invade the tumor andnourish. This process is known as
TLS Online TPP Program

#Question id: 4326

#Unit 3. Fundamental Processes

Which of the following is an example of post-transcriptional control of gene expression?