Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account

Stages of translation

Initiation, Elongation, Translocation, Termination


The start codon (AUG) is on the 5' end of all mRNAs. Each codon attaches to a particular tRNA. 3' end is free and has a base sequence of CCA. There are complimentary bases in tRNA and hydrogen bonds form in four areas. Causes the tRNA to fold and take on a 3 dimensional structure. If it's 2 dimensional shaped, one of the loops contains an exposed anticodon. This specific anticodon pairs with a specific anticodon of mRNA. 20 amino acids, 20 enzymes. ATP energy. Activated amino acid. tRNA delivers amino acid to ribosome to produce polypeptide chain.


tRNAs bring amino acids to the mRNA-ribosomal complexes. Proteins called elongation factors assist in binding the tRNAs to the exposed mRNA codons at the A site. The initiator tRNA moves to the P site. Ribosomes catalyze the formation of peptide bonds between adjacent amino acids.


Happens during the elongation stage. Involves the movement of the tRNAs from one site of the mRNA to another.

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording