Majority of proteins ( of intracellular use ) are not synthesized on : A -Ribosomes produced in the nucleolus B - Ribosomes attached with ER and nuclear membrane C - Free ribosomes of eukaryote cells D - Ribosomal sub- units forming polyribosomes E - Ribosomal sub- units forming polyribosomes Which are found in peri-mitochondrial space of prokaryotic cells