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Q. Polyribosomes are aggregation of

AIPMTAIPMT 1989Cell : The Unit of Life

Solution:

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