666-Aminosyror
666-Aminosyror - an exercise made by ahjp on Spellic.com.
1. Fold the right part of the paper back so that you can't se the answers.
2. Write the correct answer in the space below each question.
3. When done, fold the paper back and compare your answers.
Glutamine Phenylalanine Cysteine Glycine Aspartate Proline Lysine Serine Alanine Glutamate Histidine