Which statement accurately describes RNA polymerase II's transcription products?

Study for the A2 Genetic Control of Proteins Test. Engage with flashcards and multiple choice questions, each question is accompanied by hints and explanations. Prepare thoroughly for your exam!

Multiple Choice

Which statement accurately describes RNA polymerase II's transcription products?

Explanation:
Different RNA polymerases in eukaryotes handle different kinds of RNA. RNA polymerase II mainly makes mRNA and many small nuclear RNAs (snRNAs) involved in splicing, while RNA polymerase I transcribes the ribosomal RNA (rRNA) genes, and RNA polymerase III transcribes transfer RNA (tRNA) genes and other small RNAs. So the statement that RNA Pol II transcribes mRNA and some snRNA, with Pol I transcribing rRNA and Pol III transcribing tRNA and other small RNAs, is accurate. This division explains why tRNA is not produced by Pol II and why rRNA comes from Pol I, while mRNA and snRNA come from Pol II.

Different RNA polymerases in eukaryotes handle different kinds of RNA. RNA polymerase II mainly makes mRNA and many small nuclear RNAs (snRNAs) involved in splicing, while RNA polymerase I transcribes the ribosomal RNA (rRNA) genes, and RNA polymerase III transcribes transfer RNA (tRNA) genes and other small RNAs. So the statement that RNA Pol II transcribes mRNA and some snRNA, with Pol I transcribing rRNA and Pol III transcribing tRNA and other small RNAs, is accurate. This division explains why tRNA is not produced by Pol II and why rRNA comes from Pol I, while mRNA and snRNA come from Pol II.

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