Final answer:
Ribosomes have three tRNA binding sites: the A site, P site, and E site. Each tRNA molecule has an anticodon and a binding site for a specific amino acid.
Step-by-step explanation:
The ribosomes have three tRNA binding sites: the A (aminoacyl) site, the P (peptidyl) site, and the E (exit) site.
Each tRNA molecule has a three-nucleotide anticodon as well as a binding site for a specific amino acid.
During translation, the tRNAs enter the ribosome and bind to the appropriate codon on the mRNA, bringing the corresponding amino acid to be added to the growing polypeptide chain.