Q. Polyribosomes are aggregation of

 1577  174 AIPMTAIPMT 1989Cell : The Unit of Life Report Error

Solution:

Ribosomes may occur singly as monosomes or in rosettes and helical groups called polyribosomes. The different ribosomes are connected with 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