After injuring his knee, Kai began having pain and numbness in his lower leg. The doctor said the injury damaged nerves that run all the way down his leg. Damage to which system is causing Kai's pain and numbness? the peripheral nervous system the central nervous system the endocrine system the circulatory system

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.