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Question

Polyribosomes are aggregates of


A
Ribosomes and rRNA
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B
Only rRNA
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C
Peroxisomes
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D
Several ribosomes held together by string of mRNA.
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Solution

The correct option is D Several ribosomes held together by string of mRNA.
  • When several ribosomes are held together on a single mRNA chain and can translate an mRNA simultaneously are called polyribosomes or polysomes.
  • All the ribosomes can translate the mRNA and thus, many polypeptides chains are formed simultaneously from a single mRNA.
  • So, the correct answer is 'Several ribosomes held together by string of mRNA.'.

Biology

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