Ribosomes are mainly composed of:

Where does the synthesis of primary protein molecules take place?

What are the two subunits of $70S$ ribosomes?

Which cell organelle is described by the following statements?
$(A)$ Granular structure.
$(B)$ First observed under an electron microscope as dense particles by $George\, Palade$.
$(C)$ Composed of $RNA$ and proteins.
$(D)$ Not surrounded by any membrane.

Which of the following organelles is present in a bacterial cell?

The eukaryotic $80S$ ribosome dissociates into which two subunits?