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-Means that the mRNA carries info for the production of multiple proteins
-Is this a prokaryotic or eukaryotic trait?
- -Polycistronic
- -Prokaryotic
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Sequences on the 5' end of prokaryotic mRNA that are never translated into a protein
5' UTR, or leader sequences
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Sequences on the 3' end of prokaryotic mRNA that are never translated into a protein
3' UTR, or trailer sequences
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Eukaryotic mRNA is ____; that is, it carries information for the production of a single polypeptide
monocistronic
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large precursors of eukaryotic mRNA
heterogeneous nuclear RNA / hnRNA
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Structure of the eukaryotic 5' cap: the 5' ends of eukaryotic mRNA have this group attached via a 5' to 5' triphosphate linkage.
7-methylguanylate
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Components of the large, 50S ribosomal unit in prokaryotic rRNA
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Component of the small, 30S ribosomal subunit in prokaryotic rRNA
16S rRNA
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How many kinds of rRNA do eukaryotes have?
4
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Components of the large, 60S ribosomal subunit in eukaryotic rRNA
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Component of the small, 40S ribosomal subunit in eukaryotic rRNA
18S
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Which eukaryotic rRNA component is the transcription product of a separate gene?
5S
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True/False: tRNAs are not modified post-transcriptionally.
False: tRNAs are heavily modified post-transcriptionally.
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An RNA component of signal recognition particles
small cytoplasmic RNAs (scRNAs)
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RNA that is associated with snurps, which function in the splicing reactions needed to process hnRNA to mRNA
small nuclear RNAs (snRNAs)
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RNAs that silence genes by promoting the cleavage mRNAs with exactly complementary sequences
short interfering RNAs (siRNAs)
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RNAs that silence certain cellular genes at the stage of protein synthesis
micro RNAs (miRNAs)
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3 phases of transcription
initian, elongation, termination
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