Dr. Bayul studies rock formations all over the world. She is working on a study of two rock formations. The information from the study is as follows: Rock A formed from liquid rock.
Rock B formed from small pieces of rock in a different place.
Rocks A and B formed at about the same time.
Are Rocks A and B the same or different types of rock?

The empty trna moves off and picks up another matching amino acid from the cytoplasm in the cell. the anticodon of the trna, with its attached amino acid, pairs to the codon of the mrna, which is attached to a ribosome. this sequence is repeated until the ribosome reaches a stop codon on the mrna, which signals the end of protein synthesis. the ribosome forms a peptide bond between the amino acids, and an amino acid chain begins to form. when a second trna with its specific amino acid pairs to the next codon in sequence, the attached amino acid breaks from the first trna and is bonded to the amino acid of the second trna.