Atoms have numbers of and , and are electrically because the charges out.

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.

Which environmental change would most likely result in bullfrog offspring that are able to store more water than bullfrogs in previous generations?

Why do you suppose the structural polysaccharide cellulose does not contain branches?