00:01
During protein synthesis, during protein synthesis, transfer rna, transfer rna or trna molecules play a crucial role in bringing, they play a crucial role in bringing amino acid, amino acid to the ribosome, to the ribosome where they are added, where they are added to the growing, to the growing polypeptide chain, polypeptide, to the growing polypeptide chain.
00:57
So after an amino acid is added to the polypeptide chain, the trna molecule becomes uncharged, this trna molecule becomes uncharged, that is a divide of its amino acid.
01:16
So in the ribosome, in the ribosome, there are three sites, in the ribosome, there are three sites where the trna molecules interact and synthesize, interact during protein synthesis.
01:36
First is the a site or the aminoacyl site.
01:45
So at the a site, this is where the incoming trna, this is where the incoming trna molecule carrying the next amino acid, carrying the next amino acid to be added, next amino acid to be added to the polypeptide chain, binds, binds to the ribosome, to the ribosome...