Question:

Polyribosomes are aggregation of

Updated On: Jul 25, 2024

ribosomes and $ r RNA$
peroxisomes
several ribosomes held together by a string of $mRNA$
$rRNA$

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The Correct Option is C

Solution and Explanation

Ribosomes may occur singly as monosomes or in rosettes and helical groups called polyribosomes. The different ribosomes are connected with a $10 - 20?$ thick strand of $ mRNA$. They are formed during periods of active protein synthesis when a number of copies of the same polypeptide are required

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Concepts Used:

Translation

The translation is the process of converting nucleic acid information into amino acids. It also relates to the process of producing proteins from mRNA templates.

Components of Translation:

The main components of translation include :

mRNA of both Eukaryotes and Prokaryotes
tRNA - It helps in sending commands or transferring the information between protein and nucleic acids.
Ribosomes - It contains ribosomal RNA and proteins, therefore, it is called the manufacturing unit of a cell.
Enzymes - It is required for the formation of a peptide bond between the amino acids and also to attach amino acids to the accurate tRNA molecules.
Proteins - They are the soluble factors, which are required for proper initiation, elongation and termination of translation.

Translation Process:

The three stages of translation are-

Initiation involves assembling ribosomes around mRNA and activating amino acid and delivering it to the transfer RNA.
Elongation is the process in which the RNA strand gets longer by adding amino acids.
The termination process only involves releasing a polypeptide chain.