Three stages of translation

The Shine-Dalgarno sequence is...

• a start codon on the tRNA.

• a purine-rich region upstream of the AUG start codon on the mRNA.

• a sequence on the large ribosomal subunit.

• a protein that binds to the A-site.

The process of protein synthesis takes place in the ___________.

• nucleus

• cytoplasm

• ribosome

• mitochondria

Label the anticodon

Which of the following amino acids is equivalent as the START codon?

The "triplet" of codes in the mRNA are called...

(a)  

After the ribosome moves one triplet forward on the mRNA, the empty tRNA is located in the ​ (a)  

• E-site
• A-site
• P-site
• T-site

Termination happens when

• a tRNA with a stop codon enters the A-site.

• a release factor binds to a stop codon in the A-site.

• the ribosome reaches the end of the mRNA.

• the small ribosomal subunit detaches.

What catalyzes the cleavage of the bond between the polypeptide and the tRNA?

• tRNA

• ribosome

• release factor

• mRNA