Transcription and RNA Processing Quiz

What is transcription?

• The process of DNA replication

• The process of translating RNA into protein

• The process of DNA repair

• The process of copying out the DNA sequence of a gene to make an RNA molecule

Which enzyme is involved in transcription?

• Helicase

• RNA polymerase

• DNA polymerase

• Ligase

What is the direction of RNA synthesis during transcription?

• Neither 5' to 3' nor 3' to 5'

• Both 5' to 3' and 3' to 5'

• 3' to 5'

• 5' to 3'

What are the stages of transcription?

• Promoter binding, exon skipping, and intron removal

• Initiation, elongation, and termination

• Splicing, capping, and polyadenylation

• Replication, translation, and transcription

What is the purpose of RNA processing in eukaryotes?

• To degrade the RNA molecule

• To modify the RNA sequence

• To add a 5' cap and a 3' poly-A tail

• To remove introns and join exons

How are eukaryotic pre-mRNAs modified?

• By adding a 5' cap and a 3' poly-A tail

• By removing introns and joining exons

• By splicing and modifying the RNA sequence

• By degrading the RNA molecule

What happens during the initiation stage of transcription?

• RNA polymerase releases the RNA transcript and terminates transcription

• RNA polymerase binds to the promoter and separates the DNA strands

• RNA polymerase synthesizes an RNA strand using a DNA template

• RNA polymerase adds a 5' cap and a 3' poly-A tail to the RNA molecule

What is the role of terminators in transcription?

• They bind to RNA polymerase and prevent transcription

• They signal the completion of RNA synthesis

• They remove introns from the pre-mRNA

• They add a 5' cap and a 3' poly-A tail to the RNA molecule

How is transcription controlled for each gene in the genome?

• Transcription factors bind to specific DNA sequences

• RNA polymerase randomly selects genes to transcribe

• Transcription occurs simultaneously for all genes

• Transcription is not controlled for individual genes

What is the purpose of splicing in eukaryotic transcription?

• To remove introns and join exons

• To add a 5' cap and a 3' poly-A tail

• To modify the RNA sequence

• To degrade the RNA molecule