Protein synthesis occurs when the mRNA is translated by the ribosomes. Each mRNA may encode the information for more than one protein, with many ribosomes binding to a single mRNA at the same time to form polysomes that can rapidly synthesize many copies of the peptide.

In what stage does protein synthesis occur?

Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus.

Where and when does protein synthesis take place?

Ribosomes are the sites in a cell in which protein synthesis takes place. Cells have many ribosomes, and the exact number depends on how active a particular cell is in synthesizing proteins.