What does the structure of amino acids consist of

Each amino acid has the same fundamental structure , which consists of a central carbon atom, also known as the alpha (α) carbon, bonded to an amino group (NH2), a carboxyl group (COOH), and to a hydrogen atom.

sex cells are usually half's then they find another half and make a fertilize egg

it marks things for degradation via the proteasome. it alters there celluar location.