To maintain adequate nutrition, animals require dietary access to certain amino acids. an amino acid that is referred to as "nonessential" would be be

Which experiment would most likely contain experimental bias

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.

What organ is the first to receive nutrients that have been absorbed from the digestive tract?