Select one which is not true for ribosome

Options

A. Made of two sub units
B. Form polysome
C. May attach of mRNA
D. Have no role in protein synthesis

Answer

D

Explanation

Ribosomes are cell organelles that are formed of two subunits. Cytosolic eukaryotic ribosome 80s are made up of 60s and 40s subunits while prokaryotic ribosomes 70s are made up of 50s and 30s subunits. Many ribosomes bound to a strand of mRNA and forms polyribosome. Ribosomes are also called protein factories as they are the sites of protein synthesis.