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Questions and Answers
Which polymerase in eukaryotic transcription synthesizes 45s rRNA in the nucleolus?
Which polymerase in eukaryotic transcription synthesizes 45s rRNA in the nucleolus?
- Polymerase I (correct)
- Mitochondrial polymerase
- Polymerase II
- Polymerase III
What is the purpose of the 5' cap in mRNA processing?
What is the purpose of the 5' cap in mRNA processing?
- To guide mRNA translocation to the cytoplasm
- To prevent elongation
- To stabilize mRNA (correct)
- To determine protein variation
Which region of DNA in eukaryotes affects the regulation of gene expression?
Which region of DNA in eukaryotes affects the regulation of gene expression?
- Promotor regions
- Suppressor regions
- Enhancer regions (correct)
- Structural genes
Which type of RNA accounts for approximately 80% of the total RNA in rapidly growing mammalian cells?
Which type of RNA accounts for approximately 80% of the total RNA in rapidly growing mammalian cells?
Which enzyme is involved in the removal of introns during mRNA processing?
Which enzyme is involved in the removal of introns during mRNA processing?
Which type of RNA polymerase synthesizes mRNA in the nucleoplasm?
Which type of RNA polymerase synthesizes mRNA in the nucleoplasm?
Which type of polymerase synthesizes mitochondrial RNA?
Which type of polymerase synthesizes mitochondrial RNA?
Which type of RNA accounts for approximately 15% of the total RNA in rapidly growing mammalian cells?
Which type of RNA accounts for approximately 15% of the total RNA in rapidly growing mammalian cells?
Which type of RNA accounts for approximately 5% of the total RNA in rapidly growing mammalian cells?
Which type of RNA accounts for approximately 5% of the total RNA in rapidly growing mammalian cells?
Which sugar is found in RNA?
Which sugar is found in RNA?
What is the base that is found in RNA but not in DNA?
What is the base that is found in RNA but not in DNA?
What is the primary function of RNA polymerase?
What is the primary function of RNA polymerase?
Which component of RNA polymerase recognizes the promoter region of DNA?
Which component of RNA polymerase recognizes the promoter region of DNA?
What is the structure of RNA generally like?
What is the structure of RNA generally like?
Which type of RNA makes up the majority of cellular RNA?
Which type of RNA makes up the majority of cellular RNA?
Which subunit of RNA polymerase binds to the promoter region of DNA?
Which subunit of RNA polymerase binds to the promoter region of DNA?
What is the product of RNA synthesis?
What is the product of RNA synthesis?
What type of bonds link the nucleotides in RNA?
What type of bonds link the nucleotides in RNA?
What can RNA molecules do in terms of their 3D structure?
What can RNA molecules do in terms of their 3D structure?
What RNA structure is considered to be a part of the tertiary structures?
What RNA structure is considered to be a part of the tertiary structures?
elongation starts with a pyrimidine or purine?
elongation starts with a pyrimidine or purine?
Inhibitors of RNA synthesis
Inhibitors of RNA synthesis
mRNA processing
mRNA processing
Match the following inhibitors with the appropriate RNA synthesis process they inhibit:
Match the following inhibitors with the appropriate RNA synthesis process they inhibit:
Match the following types of RNA with the appropriate percentage they represent of the total RNA in rapidly growing mammalian cells:
Match the following types of RNA with the appropriate percentage they represent of the total RNA in rapidly growing mammalian cells:
Match the following eukaryotic polymerases with their function:
Match the following eukaryotic polymerases with their function:
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