Polysomes

question 14

Multiple Choice

Polysomes...

• A) are large cytoplasmic assemblies made of several ribosomes each translating their exclusive mRNA.
• B) are only found in the eukaryotic cytoplasm.
• C) can take advantage of the circularization of eukaryotic mRNA (by interactions between the 5' and 3' ends of the mRNA) to further speed up the rate of protein synthesis.
• D) are mostly translationally inactive and are normally used by the cell to store the ribosomes and their associated mRNAs for future use.
• E) All of the above.

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