12 Questions
Which of the following elements play a crucial role in regulating RNA polymerase activity during transcription initiation?
Cis elements
What is the primary function of transcription factors in the process of gene expression?
Regulate RNA polymerase activity
Which enzyme is responsible for catalyzing the synthesis of RNA from DNA during transcription initiation?
RNA polymerase
What role do intrinsic termination signals play in the process of transcription termination?
Cause RNA polymerase to release the RNA transcript
Which cellular process is impacted by post-translational regulation?
Signal transduction
What is the role of DNA methylation in epigenetics?
Silences gene expression
How do histone modifications impact gene expression?
Silence gene expression
In epigenetics, what does chromatin remodeling refer to?
Regulating gene expression by nucleosome movement
What is the role of cis elements in transcription regulation?
Regulate gene transcription by interacting with DNA sequences
In transcription initiation, what is the function of trans factors?
Bind to cis elements and regulate transcription complexes assembly
Which type of regulation involves activator proteins binding to cis elements?
Positive control
What distinguishes negative control from positive control in mRNA synthesis regulation?
Negative control involves repressor proteins, while positive control involves activator proteins
Test your knowledge on the importance of protein combinations, transcription regulation, and the key factors influencing gene activation and protein synthesis.
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