5. Gene Regulation

Transcription Factors — Quiz

Test your understanding of transcription factors with 5 practice questions.

Practice Questions

Question 1

Typical homeodomain transcription factors contain a DNA-binding domain of approximately how many amino acids?

Question 2

A transcription factor has a dissociation constant $K_d=10\,\mathrm{nM}$. What is the fractional occupancy $\theta$ at a TF concentration of 30\,nM?

Question 3

When two transcription factors bind adjacent sites and their combined activation exceeds the sum of their individual effects, this phenomenon is called:

Question 4

Which genome-wide experimental method uses antibody-tethered micrococcal nuclease to cleave DNA at transcription factor binding sites, yielding high-resolution maps?

Question 5

Which coactivator possesses intrinsic histone acetyltransferase activity to remodel chromatin and enhance transcription?