The formation of polyribosomes from ribosomes is done in the presence of

N a^{+} i o n s

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K^{+} i o n s

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C a^{2 +} i o n s

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M g^{2 +} i o n s

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Solution

The correct option is A $N a^{+} i o n s$
A clusters of ribosomes linked together by a molecule of messenger RNA and forming the site of protein synthesis called polysome or polyribosome. The formation of polyribosomes from ribosomes is done in the presence of sodium ions.
So the correct answer is ' $N a +$ '.

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