Identify Which Statements Apply To The Ribosome, Rna Polymerase II, Or Both In Eukaryotic Cells
In eukaryotic cells, the three nuclear RNA polymerases – RNA polymerase I, RNA polymerase II, and RNA polymerase III – work together to transcribe genetic information from DNA into RNA. All three enzymes are distinct structurally and differ in their functions.
Ribosomes
Ribosomes are the sites of protein synthesis, and they are comprised of two subunits – a small and large subunit – that come together to form a complex. Ribosomes can be found in both prokaryotic and eukaryotic cells, and their function is the same in both: to convert the genetic information contained in mRNA into proteins.
RNA Polymerase I
RNA Polymerase I is mainly responsible for transcribing the tandemly duplicated rRNA genes in eukaryotes. It is structurally unique from the other two RNA polymerases and is a key component of the eukaryotic transcription process.
RNA Polymerase II
RNA Polymerase II is the major player when it comes to transcription in eukaryotes, as it is responsible for transcribing all of the protein-coding genes. It is structurally similar to the other two RNA polymerases, but its function and importance set it apart.
Identifying Which Statements Apply To The Ribosome, Rna Polymerase II, Or Both In Eukaryotic Cells
- Ribosomes are responsible for protein synthesis: Ribosomes
- RNA Polymerase I transcribes the tandemly duplicated rRNA genes: RNA Polymerase I
- RNA Polymerase II transcribes all of the protein-coding genes: RNA Polymerase II