30 Questions
What are the three types of RNA synthesized by RNA Polymerases?
mRNA, tRNA, and rRNA
Which type of chromatin is the most actively transcribed?
Euchromatin
What is the function of Histone Acetyltransferase (HATs)?
To add acetyl group to Lys
What is the function of Histone Deacetylase (HDAC)?
To remove acetyl group from Lys
What is the role of Transcription Factors (TFs)?
To initiate and regulate transcription
What is the function of RNA Polymerases in transcription?
To synthesize RNA
Which type of chromatin is highly condensed and contains the most inactive segments of DNA?
Heterochromatin
What is the effect of Chromatin Remodeling on DNA transcription?
It affects the ability of the transcription machinery to access the DNA to be transcribed
What is the function of rRNA in protein synthesis?
To form the ribosome
What is the function of tRNA in protein synthesis?
To carry amino acids to the ribosome
What are the three types of RNA synthesized by RNA Polymerases?
mRNA, tRNA, and rRNA
Which type of chromatin is the most actively transcribed?
Euchromatin
What is the function of Histone Acetyltransferase (HATs)?
To add acetyl group to Lys
What is the function of Histone Deacetylase (HDAC)?
To remove acetyl group from Lys
What is the role of Transcription Factors (TFs)?
To initiate and regulate transcription
What is the function of RNA Polymerases in transcription?
To synthesize RNA
Which type of chromatin is highly condensed and contains the most inactive segments of DNA?
Heterochromatin
What is the effect of Chromatin Remodeling on DNA transcription?
It affects the ability of the transcription machinery to access the DNA to be transcribed
What is the function of rRNA in protein synthesis?
To form the ribosome
What is the function of tRNA in protein synthesis?
To carry amino acids to the ribosome
Which RNA Polymerase is responsible for the synthesis of mRNA in eukaryotic cells?
RNA Polymerase II
Which histone modification results in weak DNA/histone interaction and allows for easier transcription?
Acetylation
Which type of chromatin is most active in transcription?
Euchromatin
Which type of chromatin is highly condensed and contains the most inactive segments of DNA?
Heterochromatin
Which type of regulatory proteins initiate and regulate transcription in eukaryotic cells?
Transcription factors
What is the function of Histone Deacetylase (HDAC)?
Removes acetyl group from Lys
Which RNA Polymerase is responsible for the synthesis of rRNA in eukaryotic cells?
RNA Polymerase I
Which type of chromatin can switch between active and inactive states and is involved in X chromosome inactivation?
Facultative heterochromatin
Which type of chromatin is always condensed and contains genes that are permanently inactive?
Constitutive heterochromatin
Which histone modification is associated with transcriptional repression?
Methylation
Test your knowledge on the transcription of eukaryotic genes with this quiz! Learn about the essential requirements, including chromatin structure remodeling, RNA polymerases, and transcription factors. Challenge yourself to understand how chromatin remodeling affects transcription machinery and its ability to access DNA. This quiz includes important keywords such as euchromatin, transcription factors, and RNA polymerases.
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