Transcription in Eukaryotes

The video tutorial explains the roles of three DNA-dependent RNA polymerases in eukaryotic transcription, focusing on RNA polymerase II's transcription process. It covers the discovery of split genes, detailing introns and exons, and describes RNA processing steps like capping, polyadenylation, and splicing. The tutorial also compares transcription in prokaryotes and eukaryotes, highlighting differences in RNA polymerases and mRNA characteristics.

Which RNA polymerase is responsible for transcribing rRNA genes in eukaryotes?

• RNA polymerase IV

• RNA polymerase III

• RNA polymerase II

• RNA polymerase I

What is the role of the TATA binding protein (TBP) in transcription?

• It synthesizes RNA from DNA.

• It processes hnRNA into mRNA.

• It terminates transcription.

• It binds to the TATA box in the promoter region.

What are introns?

• Noncoding sequences within a gene

• Proteins that assist in transcription

• Sequences that code for amino acids

• RNA molecules that carry amino acids

Which process adds a methylated guanine nucleotide to the 5' end of RNA?

• Polyadenylation

• RNA splicing

• Capping

• Transcription

Where does transcription occur in eukaryotic cells?

• Ribosome

• Nucleus

• Mitochondria

• Cytoplasm

How many RNA polymerases are present in prokaryotes?

• One

• Two

• Three

• Four

What is the nature of eukaryotic mRNA in terms of coding?

• Non-coding

• Monocistronic

• Bicistronic

• Polycistronic