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Nucleolus

Polysomes are...

Question

Polysomes are aggregations of

A

Peroxisomes

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B

rRNA

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C

Ribosomes and rRNA

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D

Several Ribosomes held together by a string of mRNA

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Solution

The correct option is D Several Ribosomes held together by a string of mRNA
Ribosomes are the site of protein synthesis. Several ribosomes may attach to a single mRNA and form a chain called polyribosomes or polysome.

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Q. Consider the following statements and select the correct option.
(i) GERL includes Golgi body and lysosomes only.
(ii) Peroxisomes help to metabolise xenobiotics.
(iii) Polysomes are aggregates of ribosomes.
(iv) Mitochondria help in oxidative phosphorylation and generation of ATP.

Q. The ribosomes of a polysome are the same. They

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Q. Sir how does the mRNA molecule binds up the ribosomes together???

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